1929This year marked the end of a period known in American history as the Roaring Twenties after the Wall Street Crash of 1929 ushered in a worldwide Great Depression. In the Americas, an agreement was brokered to end the Cristero War, a Catholic counter-revolution in Mexico. The Judicial Committee of the Privy Council, a British high court, ruled that Canadian women are persons in the Edwards v. Canada (Attorney General) case. The 1st Academy Awards for film were held in Los Angeles, while the Museum of Modern Art opened in New York City.
1951January 4 – Korean War: Third Battle of Seoul – Chinese and North Korean forces capture Seoul for the second time (having lost the Second Battle of Seoul in September 1950). January 9 – The Government of the United Kingdom announces abandonment of the Tanganyika groundnut scheme for the cultivation of peanuts in the Tanganyika Territory, with the writing off of £36.5M debt. January 15 – In a court in West Germany, Ilse Koch, The "Witch of Buchenwald", wife of the commandant of the Buchenwald concentration camp, is sentenced to life imprisonment.
1917Below, the events of World War I have the "WWI" prefix. January 1917 January 9 – WWI – Battle of Rafa: The last substantial Ottoman Army garrison on the Sinai Peninsula is captured by the Egyptian Expeditionary Force's Desert Column. January 10 – Imperial Trans-Antarctic Expedition: Seven survivors of the Ross Sea party were rescued after being stranded for several months. January 11 – Unknown saboteurs set off the Kingsland Explosion at Kingsland (modern-day Lyndhurst, New Jersey), one of the events leading to United States involvement in WWI.
1913January 1913 January 3 – First Balkan War: Greece completes its capture of the eastern Aegean island of Chios, as the last Ottoman forces on the island surrender. January 13 – Edward Carson founds the (first) Ulster Volunteer Force, by unifying several existing loyalist militias to resist home rule for Ireland. January 18 – First Balkan War: Battle of Lemnos – Greek admiral Pavlos Kountouriotis forces the Turkish fleet to retreat to its base within the Dardanelles, from which it will not venture for the rest of the war.
1948January 1948 January 1 The General Agreement on Tariffs and Trade (GATT) is inaugurated. The Constitution of New Jersey (later subject to amendment) goes into effect. The railways of Britain are nationalized, to form British Railways. January 4 – Burma gains its independence from the United Kingdom, becoming an independent republic, named the 'Union of Burma', with Sao Shwe Thaik as its first President and U Nu its first Prime Minister. January 5 – In the United States: Warner Brothers shows the first color newsreel (Tournament of Roses Parade and the Rose Bowl Game).
1949January 1949 January 1 – A United Nations-sponsored ceasefire brings an end to the Indo-Pakistani War of 1947. The war results in a stalemate and the division of Kashmir, which still continues as of 2023. January 2 – Luis Muñoz Marín becomes the first democratically elected Governor of Puerto Rico. January 11 – The first "networked" television broadcasts take place, as KDKA-TV in Pittsburgh, Pennsylvania goes on the air, connecting east coast and mid-west programming in the United States.
April 261336 – Francesco Petrarca (Petrarch) ascends Mont Ventoux. 1478 – The Pazzi family attack on Lorenzo de' Medici in order to displace the ruiling Medici family kills his brother Giuliano during High Mass in Florence Cathedral. 1564 – Playwright William Shakespeare is baptized in Stratford-upon-Avon, Warwickshire, England (date of birth is unknown). 1607 – The Virginia Company colonists make landfall at Cape Henry. 1721 – A massive earthquake devastates the Iranian city of Tabriz.
May 12254 – Pope Stephen I succeeds Pope Lucius I, becoming the 23rd pope of the Catholic Church, and immediately takes a stand against Novatianism. 907 – Zhu Wen forces Emperor Ai into abdicating, ending the Tang dynasty after nearly three hundred years of rule. 1191 – Richard I of England marries Berengaria of Navarre in Cyprus; she is crowned Queen consort of England the same day. 1328 – Antipope Nicholas V, a claimant to the papacy, is consecrated in Rome by the Bishop of Venice.
May 24919 – The nobles of Franconia and Saxony elect Henry the Fowler at the Imperial Diet in Fritzlar as king of the East Frankish Kingdom. 1218 – The Fifth Crusade leaves Acre for Egypt. 1276 – Magnus Ladulås is crowned King of Sweden in Uppsala Cathedral. 1487 – The ten-year-old Lambert Simnel is crowned in Christ Church Cathedral, Dublin, Ireland, with the name of Edward VI in a bid to threaten King Henry VII's reign. 1567 – Erik XIV of Sweden and his guards murder five incarcerated Swedish nobles.
June 7421 – Emperor Theodosius II marries Aelia Eudocia at Constantinople (Byzantine Empire). 879 – Pope John VIII recognizes the Duchy of Croatia under Duke Branimir as an independent state. 1002 – Henry II, a cousin of Emperor Otto III, is elected and crowned King of Germany. 1099 – First Crusade: The Siege of Jerusalem begins. 1420 – Troops of the Republic of Venice capture Udine, ending the independence of the Patria del Friuli. 1494 – Spain and Portugal sign the Treaty of Tordesillas which divides the New World between the two countries.