The Buenos Aires Metro, the first underground railway system in the Southern Hemisphere and in Latin America, begins operation. Date: December 1, 1913 Read more on Wikipedia → 📅 Other events on December 1 📅 Events on this day in 1913 📅 On This Day (Today)
The Kingdom of Serbs, Croats and Slovenes (later known as the Kingdom of Yugoslavia) is proclaimed. Date: December 1, 1918 Read more on Wikipedia → 📅 Other events on December 1 📅 Events on this day in 1918 📅 On This Day (Today)
Iceland becomes a sovereign state, yet remains a part of the Danish kingdom. Date: December 1, 1918 Read more on Wikipedia → 📅 Other events on December 1 📅 Events on this day in 1918 📅 On This Day (Today)
Transylvania unites with Romania, following the incorporation of Bessarabia (March 27) and Bukovina (November 28) and thus concluding the Great Union. Date: December 1, 1918 Read more on Wikipedia → 📅 Other events on December 1 📅 Events on this day in 1918 📅 On This Day (Today)
Lady Astor becomes the first female Member of Parliament (MP) to take her seat in the House of Commons of the United Kingdom. (She had been elected to that position on November 28.) Date: December 1, 1919 Read more on Wikipedia → 📅 Other events on December 1 📅 Events on this day in 1919…
A Soviet-backed communist 1924 Estonian coup d'état attempt fails in Estonia. Date: December 1, 1924 Read more on Wikipedia → 📅 Other events on December 1 📅 Events on this day in 1924 📅 On This Day (Today)
The National Hockey League's first United States–based franchise, the Boston Bruins, plays their first game in league play at home, at the still-extant Boston Arena indoor hockey facility. Date: December 1, 1924 Read more on Wikipedia → 📅 Other events on December 1 📅 Events on this day in 1924 📅 On This Day (Today)
Sergei Kirov is assassinated, paving way for the repressive Great Purge, and Vinnytsia massacre by General Secretary of the Communist Party of the Soviet Union, Joseph Stalin. Date: December 1, 1934 Read more on Wikipedia → 📅 Other events on December 1 📅 Events on this day in 1934 📅 On This Day (Today)
The Soviet Union establishes the Finnish Democratic Republic puppet state in Terijoki. Date: December 1, 1939 Read more on Wikipedia → 📅 Other events on December 1 📅 Events on this day in 1939 📅 On This Day (Today)
World War II: A day after the beginning of the Winter War in Finland, the Cajander III Cabinet resigns and is replaced by the Ryti I Cabinet, while the Finnish Parliament move from Helsinki to Kauhajoki to escape the Soviet airstrikes. Date: December 1, 1939 Read more on Wikipedia → 📅 Other events on December…