Pangaea started to break up into two smaller supercontinents, called Laurasia and Gondwanaland, during the late Triassic. It formed the continents Gondwanaland and Laurasia, separated by the Tethys Sea.
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She translated an article on an invention by Charles Babbage, and added her own comments. Because she introduced many computer concepts, Lovelace is considered as the first computer programmer. Thanks for reading my answer ❤️
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The Mongol invasions of Vietnam or Mongol–Vietnamese wars and Mongol–Cham war were military campaigns launched by the Mongol Empire, and later the Yuan dynasty, against the kingdom of Đại Việt (modern-day northern Vietnam) ruled by the Trần dynasty and the kingdom of Champa (modern-day central Vietnam) in 1258, 1282–1284, 1285, and 1287–88. The campaigns are treated by a number of scholars as a success due to the establishment of tributary relations with Đại Việt despite the Mongols suffering major military defeats.[11][12][13] In contrast, Vietnamese historiography regards the war as a major victory against the foreign invaders who they called "the Mongol yokes."[14][11]