Timeline

The timeline is a chronological list of important events that are related or discussed by OverSimplified.

Note: All dates, when provided, are written in the New Style.

Ancient History

 * c. 2100 BCE
 * The Xia Dynasty, the first Chinese dynasty, was established.
 * 551 BCE
 * September 28: Confucius was born.
 * 479 BCE
 * April 11: Confucius died at the age of 72.
 * 192 A.D.
 * May 22: Dong Zhuo died.
 * 199 A.D.
 * February 7: Lü Bu died.

Early Middle Ages

 * 747 A.D.
 * April 2: Charlemagne was born.
 * 800 A.D.
 * December 25: Pope Leo III crowns Charlemagne Holy Roman Emperor, creating the Holy Roman Empire.
 * 814 A.D.
 * January 28: Charlemagne dies.
 * 1003
 * Edward the Confessor was born.
 * 1021
 * October 20: The Vikings discovered the Americas.
 * c. 1022
 * Harold Godwinson was born.
 * c. 1028
 * William the Conqueror was born.
 * 1066
 * January 5: Edward the Confessor dies.
 * October 14:
 * The Battle of Hastings occured.
 * Harold Godwinson died at the age of about 44.
 * December 25: William the Conqueror becomes king of England.
 * 1087
 * September 9: William the Conqueror dies.

High Middle Ages

 * TBA

Late Middle Ages

 * 1325
 * The War of the Bucket occurred.
 * 1451
 * April 22: Isabella I of Castile was born.
 * Between August 25 and October 31: Christopher Columbus was born.
 * 1452
 * March 10: Ferdinand II of Aragon was born.
 * 1455
 * Wars of the Roses begins
 * 1457
 * January 28: Henry VII was born.
 * 1485
 * Thomas Cromwell was born.
 * December 16: Catherine of Aragon was born.
 * 1486
 * Arthur, Prince of Wales, was born.
 * 1487
 * Wars of the Roses ends.
 * 1491
 * June 28: Henry VIII was born.
 * 1492
 * October 12: Christopher Columbus "discovered" the New World.
 * c. 1501
 * Anne Boleyn was born.
 * 1502
 * April 2: Arthur, Prince of Wales, dies.
 * 1504
 * November 26: Isabella I of Castile dies at the age of 53.
 * 1506
 * May 20: Christopher Columbus died.
 * c. 1508
 * Jane Seymour was born.
 * 1509
 * April 21: Henry VII dies.
 * April 22: Henry VIII becomes King of England.
 * June 11: Henry VIII marries Catherine of Aragon.
 * 1512
 * Catherine Parr was born.
 * 1515
 * September 22: Anne of Cleves was born.
 * 1516
 * January 23: Ferdinand II of Aragon died at the age of 63.
 * February 18: Mary I was born.
 * 1521
 * Catherine Howard was born.
 * 1533
 * January 25: Henry VIII marries Anne Boleyn.
 * May 23: Henry VIII annulls his marriage with Catherine of Aragon.
 * September 7: Elizabeth I was born.
 * 1536
 * May 19: Anne Boleyn is convicted and executed.
 * May 30: Henry VIII marries Jane Seymour.
 * 1537
 * October 12: Edward VI was born.
 * October 24: Jane Seymour dies from birth complications.
 * 1540
 * January 6: Henry VIII married Anne of Cleves.
 * July 9: Hery VIII's marriage with Anne of Cleves is annulled.
 * July 28: Thomas Cromwell was executed. That same day, Henry VIII married Catherine Howard.
 * 1542
 * February 13: Catherine Howard was beheaded due to adultery.
 * 1543
 * July 12: Henry VIII married Catherine Parr.
 * 1544
 * September 14: Henry VIII took the city of Boulogne from France.
 * 1547
 * January 28: Henry VIII dies. Edward VI then becomes king.
 * 1548
 * September 5: Catherine Parr dies.
 * 1557
 * Anne of Cleves dies.
 * 1558
 * November 17: Mary I dies.
 * 1603
 * March 24: Elizabeth I dies.

Early Modern Period

 * 1706
 * January 17: Benjamin Franklin was born.
 * 1710
 * February 15: Louis XV was born.
 * 1715
 * September 1: Louis XV became the king of France.
 * 1718/19
 * March 10: Thomas Gage was born.
 * 1721
 * September 10: The Russian Empire replaced the Tsardom of Russia.
 * 1722
 * September 27: Samuel Adams was born.
 * 1729
 * August 10: William Howe was born.
 * 1732
 * February 22: George Washington was born.
 * November 13: John Dickinson was born.
 * 1735
 * October 30: John Adams was born.
 * 1736
 * May 29: Patrick Henry was born.
 * 1738
 * January 21: Ethan Allen was born.
 * June 4: George III was born.
 * 1741
 * January 14: Benedict Arnold was born.
 * 1743
 * April 13: Thomas Jefferson was born.
 * 1745
 * December 12: John Jay was born.
 * 1748
 * May 3: Emmanuel Joseph Sieyès was born.
 * 1751
 * March 16: James Madison was born.
 * 1754
 * August 23: Louis XVI was born.
 * 1755
 * November 17: Louis XVIII was born.
 * 1756
 * May 17: The Seven Years' War began.
 * 1755 or 1757:
 * January 11: Alexander Hamilton was born.
 * 1758
 * May 6: Maximilien Robespierre was born.
 * September 29: Horatio Nelson was born.
 * 1763
 * February 15: The Seven Years' War ended.
 * 1764
 * April 5: Great Britain passed the Sugar Act.
 * October 24: The Green Mountain Boys were established.
 * 1765
 * March 22: Great Britain passed the Stamp Act.
 * 1766
 * March 18:
 * Great Britain forcibly repealed the Stamp Act.
 * Great Britain passed the Declaratory Act.
 * 1767
 * March 15: Andrew Jackson was born.
 * June 5: Great Britain passed the first of the Townshend Acts.
 * 1768
 * France invades Corsica.
 * February 12: Francis II was born.
 * 1769
 * August 15: Napoleon Bonaparte was born.
 * 1770
 * March 5: The Boston Massacre occurred.
 * August 3: Frederick William III was born.
 * 1773
 * December 16: The Boston Tea Party occurred.
 * 1774
 * May 10: Louis XV died.
 * September 5: The First Continental Congress met in Philadelphia, Pennsylvania.
 * 1775
 * April 19: Someone fired the "shot heard 'round the world," starting the battles of Lexington and Concord; thus, the American Revolutionary War began.
 * May 10: The Capture of Fort Ticonderoga occurred.
 * June 17: The Battle of Bunker Hill occurred.
 * June 19: George Washington was made the Commander in Chief of the Continental Army.
 * 1776
 * March 4: The Fortification of Dorchester Heights began.
 * March 5: The Fortification of Dorchester Heights ended.
 * July 4: The United States is created via the Declaration of Independence.
 * 1777
 * September 19: The Battles of Saratoga started.
 * October 7: The Battles of Saratoga ended.
 * December 23: Alexander I was born.
 * 1778
 * France entered the American Revolutionary War.
 * 1779
 * Unknown date: The Green Mountain Boys were disbanded.
 * 1781
 * October 19: The United States wins the Siege of Yorktown.
 * 1783
 * September 3: The Kingdom of Great Britain and the United States signed the Treaty of Paris, ending the American Revolutionary War.
 * 1786
 * June 13: Winfield Scott was born.
 * 1787
 * April 2: Thomas Gage died at the age of 67 – 68.
 * 1789
 * February 12: Ethan Allen died at the age of 51.
 * April 30: George Washington was sworn in as the 1st President of the United States.
 * May 5: The French Revolution began.
 * July 14: The Bastille was stormed.
 * 1790
 * April 17: Benjamin Franklin died at the age of 84.
 * 1791
 * April 23: James Buchanan was born.
 * December 12: Marie Louise, Duchess of Parma was born.
 * 1792
 * April 20: The War of the First Coalition began.
 * July 5: Francis II became the Holy Roman Emperor.
 * September 21: The French monarchy was abolished.
 * September 22: The French First Republic was founded.
 * 1793
 * January 21: Louis XVI was beheaded.
 * July 27: Maximilien Robespierre was elected to the Committee of Public Safety.
 * September 5: The Reign of Terror began.
 * October 16: Marie Antoinette was beheaded.
 * 1794
 * July 28: Maximilien Robespierre (aged 36) was beheaded, ending the Reign of Terror.
 * 1797
 * March 4: John Adams was sworn in as the 2nd President of the United States.
 * October 17: The War of the First Coalition ended.
 * November 16: Frederick William III became the king of Prussia.
 * 1798
 * November 29: The War of the Second Coalition began.
 * 1799
 * June 6: Patrick Henry died at the age of 63.
 * June 18: The Coup of 30 Prairial VII, in which Emmanuel Joseph Sieyès overthrew the Jacobin government, occurred.
 * November 9: Napoleon became the First Consul of France, ending the French Revolution.
 * December 14: George Washington died at the age of 67.

Late Modern Period

 * 1801
 * January 1: The Kingdoms of Great Britain and Ireland united to form the United Kingdom of Great Britain and Ireland.
 * March 4: Thomas Jefferson was sworn in as the 3rd President of the United States.
 * March 23: Alexander I was crowned Emperor of Russia.
 * June 14: Benedict Arnold died at the age of 60.
 * 1802
 * March 25: The War of the Second Coalition ended.
 * 1803
 * May 18: The War of the Third Coalition began.
 * July 4: The Louisiana Purchase occurred.
 * October 2: Samuel Adams died at the age of 81.
 * 1804
 * December 2: Napoleon crowned himself Emperor of the French.
 * July 12: Alexander Hamilton died at the age of 47 or 49.
 * August 11: Francis II declared himself Emperor Francis I of Austria.
 * 1805
 * October 21: Horatio Nelson died at the age of 47.
 * 1806
 * July 12: The Confederation of the Rhine was established.
 * July 18: The War of the Third Coalition ended in a French victory.
 * August 6: Francis I dissolved the Holy Roman Empire.
 * October 9: The War of the Fourth Coalition began.
 * 1807
 * July 9: The War of the Fourth Coalition ended in a French victory.
 * October 27: The Peninsular War began.
 * 1808
 * February 14: John Dickinson died at the age of 75.
 * 1809
 * February 12: Abraham Lincoln was born.
 * March 4: James Madison was sworn in as the 4th President of the United States.
 * April: The War of the Fifth Coalition begins.
 * October: The War of the Fifth Coalition ends.
 * 1812
 * June 24: Napoleon invaded Russia.
 * December 14: Russia defeated Napoleon.
 * 1813
 * March 3: The War of the Sixth Coalition began.
 * 1814
 * April 11: Napoleon abdicated the throne and was exiled to Elba.
 * April 17: The Peninsular War ended.
 * May 3: Louis XVIII was crowned king of France.
 * May 30: The War of the Sixth Coalition ended.
 * July 12: William Howe died at the age of 84.
 * 1815
 * March 20: Napoleon returned to France and was crowned emperor.
 * The War of the Seventh Coalition, or the Hundred Days War, began.
 * July 8: The War of the Seventh Coalition, or the Hundred Days War, ended.
 * October 15: Napoleon was exiled to Saint Helena.
 * 1817
 * March 4: James Madison's term ended.
 * 1818
 * April 29: Alexander II was born.
 * May 5: Karl Marx was born.
 * 1820
 * January 29: George III died at the age of 81.
 * March 2: The House of Representatives passed the Missouri Compromise.
 * March 15: Maine was admitted as the 23rd state.
 * 1821
 * May 5: Napoleon died at the age of 51.
 * August 10: Missouri was admitted as the 24th state.
 * 1822
 * April 27: Ulysses S. Grant was born.
 * 1824
 * January 21: Stonewall Jackson was born.
 * September 16: Louis XVIII died at the age of 68.
 * 1825
 * January 16: George Pickett was born.
 * December 1: Alexander I died at the age of 47.
 * 1826
 * July 4:
 * John Adams died at the age of 90.
 * Thomas Jefferson died at the age of 83.
 * 1829
 * March 4: Andrew Jackson was sworn in as the 7th President of the United States.
 * May 17: John Jay died at the age of 83.
 * 1835
 * March 2: Francis I at the age of 67.
 * 1836
 * June 20: Emmanuel Joseph Sieyès died at the age of 88.
 * June 28: James Madison died at the age of 85.
 * 1837
 * March 4: Andrew Jackson's term ended.
 * June 7: Alois Hitler was born.
 * 1838
 * May 10: John Wilkes Booth was born.
 * 1840
 * June 7: Frederick William III died at the age of 69.
 * 1845
 * March 10: Alexander III was born.
 * June 8: Andrew Jackson died at the age of 78.
 * December 29: Texas was admitted as the 28th state.
 * 1846
 * April 25: The Mexican–American War began.
 * 1847
 * November 26: Maria Feodorovna was born.
 * December 17: Marie Louise, Duchess of Parma died at the age of 56.
 * 1848
 * February 2: The Mexican–American War ended in an American victory.
 * February 21:  was published.
 * 1849
 * June 29: Sergei Witte was born.
 * 1850
 * September 9:
 * California was admitted as the 31st state.
 * The Utah and New Mexico Territories were added to the USA.
 * September 18: Congress passed the Fugitive Slave Act.
 * 1852
 * November 3: Emperor Meiji was born.
 * 1854
 * May 30: The Kansas-Nebraska Act repealed the Missouri Compromise.
 * 1855
 * March 2: Alexander II was crowned Emperor of Russia.
 * 1856
 * December 28: Woodrow Wilson was born.
 * 1857
 * March 4: James Buchanan was sworn in as the 15th President of the United States.
 * 1859
 * June 15: The Pig War began.
 * October: The Pig War ended.
 * 1860
 * August 12: Klara Hitler was born.
 * 1861
 * March 4: Abraham Lincoln was sworn in as the 16th President of the United States.
 * April 12: The American Civil War began.
 * 1862
 * April 14: Pyotr Stolypin was born.
 * 1863
 * May 10: Stonewall Jackson died at the age of 39.
 * June 20: West Virginia was admitted as the 35th state.
 * December 18: Franz Ferdinand was born.
 * 1865
 * April 9: The American Civil War ended.
 * April 14: John Wilkes Booth assassinated Abraham Lincoln at Ford's Theatre.
 * April 15: Abraham Lincoln died at the age of 56.
 * April 26: John Wilkes Booth died at the age of 26.
 * November 2: Warren G. Harding was born.
 * 1866
 * May 29: Winfield Scott died at the age of 79.
 * 1867
 * February 3: Emperor Meiji became the 122nd Emperor of Japan.
 * 1868
 * May 18: Nicholas II was born.
 * June 1: James Buchanan died at the age of 77.
 * 1869
 * January 21: Grigori Rasputin was born.
 * March 4: Ulysses S. Grant was sworn in as the 18th President of the United States.
 * March 18: Neville Chamberlain was born.
 * 1870
 * February 17: Georgy Gapon was born.
 * April 22: Vladimir Lenin was born.
 * August 30: Lavr Kornilov was born.
 * 1874
 * August 10: Herbert Hoover was born.
 * November 30: Winston Churchill was born.
 * 1875
 * July 30: George Pickett died at the age of 50.
 * 1877
 * March 4: Ulysses S. Grant's term ended.
 * 1878
 * December 18: Joseph Stalin was born.
 * 1879
 * November 7: Leon Trotsky was born.
 * 1880
 * January 26: Douglas MacArthur was born.
 * 1881
 * March 13: Alexander II died at the age of 62.
 * May 4: Alexander Kerensky was born.
 * 1882
 * January 13: Alois Hitler, Jr. was born.
 * January 30: Franklin D. Roosevelt was born.
 * 1883
 * March 14: Karl Marx died at the age of 64.
 * April 6: Alois Hitler's first wife died.
 * May 27: Alexander III was crowned Emperor of Russia.
 * July 29: Benito Mussolini was born.
 * 1884
 * May 8: Harry S. Truman was born.
 * 1885
 * January 7: Alois Hitler married Klara Pölzl.
 * July 23: Ulysses S. Grant died at the age of 63.
 * 1889
 * April 15: Nikita Khrushchev was born.
 * April 20: Adolf Hitler was born.
 * 1890
 * October 14: Dwight D. Eisenhower was born.
 * 1891
 * April 15: Nicholas II visited the Empire of Japan.
 * 1894
 * March 24: Edmund Hitler was born.
 * July 25: Gavrilo Princip was born.
 * November 1: Alexander III died at the age of 49.
 * 1896
 * May 26: Nicholas II was crowned Emperor of Russia.
 * May 27: The Khodynka Tragedy occurred.
 * 1897
 * February: Vladimir Lenin was exiled to Siberia.
 * 1898
 * July 2: Anthony McAuliffe was born.
 * 1899
 * January 17: Al Capone was born.
 * 1900
 * February 2: Edmund Hitler died of measles.
 * 1903
 * January 3: Alois Hitler died at the age of 65.
 * August: The Bolsheviks and Mensheviks split.
 * 1904
 * February 8: The Russo-Japanese War began.
 * August 12: Alexei Nikolaevich was born.
 * 1905
 * January 22: Bloody Sunday occurred, starting the First Russian Revolution (AKA the 1905 Russian Revolution).
 * September 5: The Russo-Japanese War ended in a Japanese victory.
 * November 6: Sergei Witte became the 1st Prime Minister of Russia.
 * 1906
 * April 10: Georgy Gapon died at the age of 36.
 * April 27: The State Duma opened.
 * May 5: Sergei Witte's term ended.
 * July 21: Pyotr Stolypin became the 3rd Prime Minister of Russia.
 * December 19: Leonid Brezhnev was born.
 * 1907
 * June 16: The First Russian Revolution (AKA the 1905 Russian Revolution) ended.
 * December 21: Klara Hitler died at the age of 47.
 * 1908
 * August 27: Lyndon B. Johnson was born.
 * 1911
 * February 6: Ronald Reagan was born.
 * September 18: Pyotr Stolypin died at the age of 49.
 * September 24: Konstantin Chernenko was born.
 * 1912
 * July 30: Emperor Meiji died at the age of 59.
 * October 8: The First Balkan War started.
 * 1913
 * January 9: Richard M. Nixon was born.
 * March 4: Woodrow Wilson was sworn in as the 28th President of the United States.
 * May 30: The First Balkan War ended.
 * June 29: The Second Balkan War started.
 * July 14: Gerald R. Ford was born.
 * August 10: The Second Balkan War ended.
 * 1914
 * June 15: Yuri Andropov was born.
 * June 28: Gavrilo Princip assassinated Franz Ferdinand (aged 50) and his wife.
 * July 28: Austria-Hungary declares war on Serbia, triggering WW1.
 * August 1: The German Empire declares war on the Russian Empire.
 * August 3: Germany declares war on the French Third Republic.
 * August 4: Germany invades Belgium.
 * The United Kingdom of Great Britain and Ireland declares war on Germany.
 * August 6: Austria-Hungary declares war on Russia.
 * August 23: The Empire of Japan declares war on Germany.
 * August 25: Austria-Hungary declares war on Japan.
 * September 1: Russia renamed St. Petersberg to Petrograd.
 * November 1: Russia declares war on the Ottoman Empire.
 * November 5: France and Great Britain declare war on the Ottoman Empire.
 * 1915
 * March 13: Sergei Witte died at the age of 65.
 * May 23: The Kingdom of Italy declares war on Austria-Hungary.
 * August 30: Nicholas II declared himself Commander in Chief.
 * October 14: The Kingdom of Bulgaria declared war on Serbia.
 * 1916
 * January 5: Austria-Hungary declared war on the Kingdom of Montenegro.
 * February 21: The Battle of Verdun began when Germany invaded France.
 * March 9: Germany declares war on Portugal.
 * August 27: The Kingdom of Romania declared war on Austria-Hungary.
 * December 18: The Battle of Verdun ended in a French victory.
 * December 30: Grigori Rasputin died at the age of 47.
 * 1917
 * March 8: The February Revolution began—triggering the Russian Revolution—when hungry women protested on the streets.
 * March 9: Men joined the protests. The number of protests totaled 250,000.
 * March 15: Nicholas II abdicated the throne; the Provisional Government replaced the Russian Empire.
 * March 16: The February Revolution ended.
 * April 6: The United States entered WW1.
 * April 16: Vladimir Lenin returned to Russia.
 * May 18: Alexander Kerensky became the Minister of War and Navy.
 * May 29: John F. Kennedy was born.
 * July 2: The Kingdom of Greece declared war on the Central Powers.
 * July 17: Vladimir Lenin fled to Finland in disguise.
 * September 1: Alexander Kerensky imprisoned Lavr Kornilov.
 * November 7: The October Revolution occurred, starting the Russian Civil War.
 * November 8: Leon Trotsky was made Commissar for Foreign Affairs.
 * 1918
 * March 3: Russia left WW1 as a result of Leon Trotsky's "no war, no peace" policy.
 * March 12: Vladimir Lenin changed the capital of Russia from Petrograd to Moscow.
 * April 13: Lavr Kornilov died at the age of 47.
 * April 28: Gavrilo Princip died at the age of 23.
 * July 17: A group of drunk Bolsheviks murdered Nicholas II and his entire family.
 * August: A failed assassination attempt occurred on Vladimir Lenin.
 * September 2: The Bolsheviks started the Red Terror.
 * September 14: The Russian Republic replaced the Provisional Government.
 * September 29: Bulgaria surrendered to the Allied Powers.
 * October 30: The Ottoman Empire surrendered to the Allied Powers.
 * November 3: Austria-Hungary surrendered to the Allied Powers.
 * November 11, 11:00: Germany surrendered to the Allied Powers, ending WW1.
 * 1919
 * January 16: The requisite number of states ratified the Eighteenth Amendment to the United States Constitution, starting Prohibition in the United States.
 * 1921
 * March 4: Warren G. Harding was sworn in as the 29th President of the United States.
 * Spring: The Russian famine of 1921–1922 started.
 * 1922
 * April 3: Vladimir Lenin made Joseph Stalin the General Secretary of the Communist Party of the Soviet Union.
 * May 26: Vladimir Lenin suffered the first of three strokes.
 * October 31: Benito Mussolini became the Prime Minister of Italy.
 * December: Vladimir Lenin suffered the second of three strokes.
 * December 30: The Soviet Union was established.
 * 1923
 * March: Vladimir Lenin suffered the third of three strokes.
 * June 16:
 * The Russian Civil War ended.
 * The Russian Revolution ended.
 * August 2: Warren G. Harding died at the age of 57.
 * 1924
 * January 21: Vladimir Lenin died at the age of 53. Joseph Stalin succeeded him.
 * February 3: Woodrow Wilson died at the age of 67.
 * June 12: George H. W. Bush was born.
 * October 1: Jimmy Carter is born.
 * 1927
 * August 1: The Chinese Civil War began.
 * 1928
 * October 13: Maria Feodorovna died at the age of 80.
 * 1929
 * February: Joseph Stalin banished Leon Trotsky from the Soviet Union.
 * March 4: Herbert Hoover was sworn in as the 31st President of the United States.
 * October 29 (Black Tuesday): The Great Depression began.
 * 1931
 * February 1: Boris Yeltsin was born.
 * March 2: Mikhail Gorbachev is born.
 * October 17: Al Capone was imprisoned.
 * 1932
 * November 2: The Emu War began.
 * December 10: The Emu War ended in an emu victory.
 * 1933
 * January 30: Adolf Hitler became the Chancellor of Germany, replacing the Weimar Republic with Nazi Germany.
 * March 4: Franklin D. Roosevelt was sworn in as the 32nd President of the United States.
 * March 9: The Great Depression ended.
 * December 5: The Twenty-first Amendment to the United States Constitution repealed the Eighteenth Amendment, ending Prohibition.
 * 1934
 * March 9: Yuri Gagarin was born.
 * August 2: Adolf Hitler became the Führer of Germany.
 * 1935
 * October 3: The Second Italo-Ethiopian War began.
 * 1936
 * May 5: The Second Italo-Ethiopian War ended in an Italian victory.
 * 1937
 * July 7: The Second Sino-Japanese War began when the Empire of Japan invaded the Republic of China.
 * 1938
 * March 12: Nazi Germany Anschlussed with Austria.
 * 1939
 * March 15: Nazi Germany occupied Czechoslovakia.
 * April 7: Italy invaded Albania.
 * April 12: The invasion resulted in an Italian victory.
 * August 23: Nazi Germany and the Soviet Union sign the Molotov–Ribbentrop Pact, a non-aggression pact.
 * September 1: Nazi Germany invaded Poland, triggering WW2.
 * September 3:
 * The UK and France declared war on Nazi Germany.
 * The Phoney War started.
 * September 17: The Soviet Union invaded Poland.
 * October 6: Poland fell.
 * October 18: Lee Harvey Oswald was born.
 * November 30: The Winter War between the Soviet Union and Finland began.
 * 1940
 * March 13: The Winter War ended.
 * April 9: Operation Weserübung, in which Nazi Germany invaded Norway and Denmark, began.
 * May 10:
 * The Phoney War ended.
 * The Battle of France began when Germany invaded France, the Netherlands, Belgium, and Luxembourg.
 * June 10:
 * Operation Weserübung ended in a German victory.
 * The Battle of France ended in a German victory.
 * The Kingdom of Italy entered WW2.
 * The North African campaign began.
 * August 21: Leon Trotsky died at the age of 60.
 * October 9: John Lennon was born.
 * October 28: The Greco-Italian War began.
 * November 9: Neville Chamberlain died at the age of 71.
 * November 20: Hungary joined the Axis Powers.
 * November 23: Romania joined the Axis Powers.
 * 1941
 * March 1: Bulgaria joined the Axis Powers.
 * April 6: The Axis Powers invaded Yugoslavia.
 * April 23: The Greco-Italian War ended, resulting in an Italian victory.
 * June 22: Operation Barbarossa began when Nazi Germany invaded the Soviet Union.
 * December 5: Operation Barbarossa ended in a Soviet victory.
 * December 7: The Attack on Pearl Harbor occurred.
 * 1943
 * The North African campaign ended.
 * July 9: The Allied invasion of Sicily began.
 * August 17: The Allied invasion of Sicily ended in an Allied victory.
 * 1944
 * June 6: The Normandy landings, better known as D-Day, occurred.
 * August 25: Paris was liberated.
 * December 16: The Battle of the Bulge began when Nazi Germany counterattacked the Allies.
 * 1945
 * January 25: The Battle of the Bulge ended in an Allied victory.
 * February 19: The United States captured the island of Iwo Jima.
 * April 12:
 * Franklin D. Roosevelt died at the age of 63.
 * Harry S. Truman was sworn in as the 33rd President of the United States.
 * April 28: Benito Mussolini died at the age of 61.
 * April 30: Adolf Hitler committed suicide.
 * August 6: The United States dropped an atomic bomb on Hiroshima.
 * August 9: The United States dropped an atomic bomb on Nagasaki.
 * September 2: The Empire of Japan surrendered, ending WW2.

Contemporary history

 * 1947
 * January 25: Al Capone died at the age of 48.
 * March 12: U.S. President Harry S. Truman issued the Truman Doctrine; many viewed this as the official declaration of the Cold War.
 * 1948
 * June 24: The Berlin Blockade began.
 * 1949
 * April 4: NATO is established.
 * May 12: The Berlin Blockade ended.
 * August 29: The Soviet Union tested its first atomic bomb.
 * December 7: The Chinese Civil War ended.
 * 1950
 * June 25: The Korean War began when North Korea invaded South Korea.
 * 1953
 * January 20: Dwight D. Eisenhower was sworn in as the 34th President of the United States.
 * March 5: Joseph Stalin died at the age of 74; therefore, Nikita Khrushchev became the next leader of the Soviet Union.
 * July 27: The Korean War de facto ended in a stalemate.
 * 1955
 * May 14: The Warsaw Pact was established.
 * August 2: The Soviet Union tested a nuke.
 * November 1: The Vietnam War began.
 * 1957
 * October 4, 19:28: The Soviet Union launched Sputnik 1.
 * 1959
 * United States Vice President Richard M. Nixon met Soviet First Secretary Nikita Khrushchev at the American National Exhibition in Moscow.
 * 1961
 * January 20: John F. Kennedy was sworn in as the 35th President of the United States.
 * April 12: Yuri Gagarin became the first person to enter space.
 * July 19: The Nicaraguan Revolution began.
 * August 13: The Berlin Wall was built.
 * 1962
 * October 16: The Cuban Missile Crisis began.
 * October 29: The Cuban Missile Crisis ended.
 * 1963
 * November 22:
 * 12:30 CST: Lee Harvey Oswald assassinated John F. Kennedy.
 * 13:00 CST: John F. Kennedy died at the age of 46; Lyndon B. Johnson was sworn in as the 36th President of the United States.
 * November 24: Lee Harvey Oswald died at the age of 24.
 * 1964
 * April 5: Douglas MacArthur died at the age of 84.
 * October 14: The Soviet Union ousted Nikita Khrushchev and replaced him with Leonid Brezhnev.
 * October 20: Herbert Hoover died at the age of 90.
 * 1965
 * January 24: Winston Churchill died at the age of 90.
 * 1967
 * June 5: The Six-Day War began.
 * June 10: The Six-Day War ended.
 * 1968
 * March 27: Yuri Gagarin died at the age of 34.
 * 1969
 * January 20: Richard M. Nixon was sworn in as the 36th President of the United States.
 * March 28: Dwight D. Eisenhower died at the age of 78.
 * July 14: The Football War started.
 * July 16: Apollo 11 launched.
 * July 18: The Football War ended.
 * July 24: Apollo 11 landed on the Moon; Neil Armstrong became the first person to step on the Moon.
 * 1970
 * June 11: Alexander Kerensky died at the age of 89.
 * 1971
 * September 11: Nikita Khrushchev died at the age of 77.
 * 1972
 * May 22: The Moscow Summit of 1972 began when Richard M. Nixon became the first President to visit Moscow.
 * May 26: The Strategic Arms Limitation Talks, or SALT, occurred.
 * May 30: The Moscow Summit of 1972 ended.
 * June 17: The Watergate scandal started.
 * December 26: Harry S. Truman died at the age of 88.
 * 1973
 * January 22: Lyndon B. Johnson died at the age of 64.
 * June 18: The Washington Summit began when Leonid Brezhnev visited the United States.
 * June 25: The Washington Summit ended.
 * October 6: The Yom Kippur War began.
 * October 25: The Yom Kippur War ended.
 * 1974
 * August 9: Gerald R. Ford was sworn in as the 38th President of the United States, ending the Watergate scandal when Richard M. Nixon resigned.
 * 1975
 * April 30: The Vietnam War ended.
 * August 10: Anthony McAuliffe died at the age of 77.
 * November 11: The Angolan Civil War began.
 * 1977
 * January 20: Jimmy Carter is sworn in as the 39th President of the United States.
 * July 13: The Ogaden War began.
 * 1978
 * March 23: The Ogaden War ended.
 * 1979
 * December 24: The Soviet–Afghan War began when the Soviet Union invaded Afghanistan.
 * 1980
 * December 8: John Lennon died at the age of 40 after he was assassinated by Mark David Chapman.
 * 1981
 * January 20: Ronald Reagan was sworn in as the 40th President of the United States.
 * 1982
 * April 2: The Falklands War began.
 * June 14: The Falklands War ended.
 * November 10: Leonid Brezhnev died at the age of 75.
 * 1984
 * February 9: Yuri Andropov died at the age of 69.
 * 1985
 * March 10: Konstantin Chernenko died at the age of 73 and was replaced by Mikhail Gorbachev.
 * 1987
 * December 8, 13:45: The Intermediate-Range Nuclear Forces Treaty was signed.
 * 1988
 * June 1: The Intermediate-Range Nuclear Forces Treaty beame effective.
 * 1989
 * January 20: George H. W. Bush was sworn in as the 41st President of the United States.
 * February 15: The Soviet–Afghan War ended.
 * November 9: The Berlin Wall is demolished.
 * 1990
 * April 25: The Nicaraguan Revolution ended.
 * October 3: West Germany and East Germany reunite to re-form Germany.
 * 1991
 * July 1: The Warsaw Pact was dissolved.
 * December 26: The Soviet Union was dissolved.
 * 1993
 * OverSimplified is born.
 * 1994
 * April 22: Richard M. Nixon died at the age of 81.

3rd Millennium

 * 2002
 * April 4: The Angolan Civil War ended.
 * 2003
 * January 12: Leopoldo Galtieri died at the age of 76.
 * February 28: Fidel Sánchez Hernández died at the age of 85.
 * 2004
 * June 5: Ronald Reagan died at the age of 93.
 * 2006
 * October 28: The OverSimplified channel is created.
 * December 26: Gerald R. Ford died at the age of 93.
 * 2007
 * April 23: Boris Yeltsin died at the age of 76.
 * 2010
 * May 16: Oswaldo López Arellano died at the age of 88.
 * 2013
 * April 8: Margaret Thatcher died at the age of 87.
 * 2016
 * October 21: Both parts of the WW1 series are uploaded.
 * November 25: Fidel Castro died at the age of 90.
 * 2017
 * April 18: Both parts of the Hitler series are uploaded.
 * October 22: "The Falklands - MiniWars #1" is uploaded.
 * November 6: "Football War - MiniWars #2" is uploaded.
 * 2018
 * March 15: Both parts of the WW2 series are uploaded.
 * May 24: "The War that Changed the English Language - Mini-Wars #3" is uploaded.
 * August 30: Both parts of The American Revolution series are uploaded.
 * September 6: The OverSimplified Wiki is created.
 * November 15: "Emu War (Mini-Wars #4)" is uploaded.
 * November 30: George H. W. Bush died at the age of 94.
 * 2019
 * January 24: Both parts of The Cold War series are uploaded.
 * April 11: The Three Kingdoms video is uploaded.
 * June 28: Both parts of The French Revolution series are uploaded.
 * September 21: The War of the Bucket video is uploaded.
 * November 17: The COVID-19 pandemic begins.
 * 2020
 * January 16: Both parts of The American Civil War series are uploaded.
 * May 4: The Henry VIII video is uploaded.
 * August 17: Both parts of The Russian Revolution series are uploaded.
 * December 16: The Prohibition video is uploaded.
 * 2021
 * May 28: Both parts of The Napoleonic Wars series are uploaded.
 * December 6: The Pig War video is uploaded.