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1945: The atomic bomb is developed by the Manhattan Project and swiftly used in August 1945 in the atomic bombings of Hiroshima and Nagasaki, effectively ending World War II. 1945: Percy Spencer, while employed at Raytheon, would patent a magnetron based microwave oven. [481] 1945: Willard Libby began his work on radiocarbon dating.
The orthogonal parallel lines were separated by one degree intervals, and the map was limited to Southwest Asia and Central Asia. The earliest surviving world maps based on a rectangular coordinate grid are attributed to al-Mustawfi in the 14th or 15th century (who used invervals of ten degrees for the lines), and to Hafiz-i Abru (died 1430).
العربية; Aragonés; Asturianu; Azərbaycanca; تۆرکجه; বাংলা; 閩南語 / Bân-lâm-gú; Башҡортса; Беларуская ...
The Outline of the Post-War New World Map was a map completed before the attack on Pearl Harbor [1] and self-published on February 25, 1942 [2] by Maurice Gomberg of Philadelphia, Pennsylvania. It shows a proposed political division of the world after World War II in the event of an Allied victory in which the United States of America, the ...
Countries such as Japan, South Korea, and Taiwan are recently known for technology, while China and India are also major contributors to science and technology. Other countries are also notable in other scientific fields such as chemical and physical achievements. For the science and technology of various Asian countries and civilizations, see:
This changed, when postmodernity was coined to describe the major changes in the 1950s and 1960s in economy, society, culture, and philosophy. These terms stem from European History; in worldwide usage, such as in China, India, and Islam, the terms are applied in a very different way, but often in the context with their contact with European ...
At its height in 1920, the British Empire covered a quarter of the Earth's land area and comprised a quarter of its population. Other European countries, such as Belgium, Germany, and Italy, pursued colonial empires as well (mostly in Africa), but they were smaller. Russia built its Russian Empire through conquest by land in Eastern Europe, and ...
The post –Cold War era is a period of history that follows the end of the Cold War, which represents history after the dissolution of the Soviet Union in December 1991. This period saw many former Soviet republics become sovereign nations, as well as the introduction of market economies in eastern Europe. This period also marked the United ...