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2 giorni fa · In 1912, he wrote an influential paper which provided a mathematical argument for quantum mechanics. The Poincaré group used in physics and mathematics was named after him. Early in the 20th century he formulated the Poincaré conjecture, which became, over time, one of the famous unsolved problems in mathematics.
2 giorni fa · Founded on 8 January 1912 in Bloemfontein as the South African Native National Congress, the organisation was formed to advocate for the rights of black South Africans. When the National Party government came to power in 1948, the ANC's central purpose became to oppose the new government's policy of institutionalised apartheid.
4 giorni fa · This is a list of wars that began between 1900 and 1944 . This period saw the outbreak of World War I (1914–1918) and World War II (1939–1945), which are among the deadliest conflicts in human history, with many of the world's great powers partaking in total war and some partaking in genocides. Depending on the source consulted, conflict ...
17 mag 2024 · Economic history of China before 1912. A Chinese dragon seen floating among clouds engraved on a Ming -era golden canteen (15th century). The economic history of China covers thousands of years and the region has undergone alternating cycles of prosperity and decline. China, for the last two millennia, was one of the world's largest and most ...
1 giorno fa · Significant dates. Added to NRHP. 8 December 1976 [2] Designated NHL. 8 December 1976 [3] USS Texas (BB-35) is a museum ship in Galveston and former United States Navy New York -class battleship. She was launched on 18 May 1912 and commissioned on 12 March 1914. [4] [5] Texas served in Mexican waters following the "Tampico Incident" but saw no ...
3 giorni fa · Politics portal. v. t. e. The 1911 Revolution, also known as the Xinhai Revolution or Hsinhai Revolution, ended China's last imperial dynasty, the Qing dynasty, and led to the establishment of the Republic of China. The revolution was the culmination of a decade of agitation, revolts, and uprisings.
4 giorni fa · On 12 February 1912, Longyu issued the abdication of the child emperor Puyi leading to the fall of the Qing dynasty under the pressure of Yuan Shikai's Beiyang army despite objections from conservatives and royalist reformers. This brought an end to over 2,000 years of Imperial China and began a period of instability.
