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The 20th century changed the world in unprecedented ways. The World Wars sparked tension between countries and led to the creation of atomic bombs, the Cold War led to the Space Race and the creation of space-based rockets, and the World Wide Web was created.
May 31: Establishment of 20th Century Fox. March 21: Reza Shah of Iran asks the international community to formally adopt the name "Iran" to refer to the country, instead of the name "Persia". June 12: Chaco War ends. September 15: Enactment of the Nuremberg racial laws. October 3: The Second Italo-Ethiopian War begins and goes until February 1937.
The 20th century began on 1 January 1901 (MCMI), and ended on 31 December 2000 (MM). [1] [2] It was the 10th and last century of the 2nd millennium and was marked by new models of scientific understanding, unprecedented scopes of warfare, new modes of communication that would operate at nearly instant speeds, and new forms of art and entertainment.
The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
For a timeline of events from 1801 to 1900, see Timeline of the 19th century; For a timeline of events from 1901 to 1945, see Timeline of the 20th century. For 1914–1918, see Timeline of World War I; For 1939–1945 see Timeline of World War II
The Industrial Revolution was the transition to new manufacturing processes in the period from about 1760 to sometime between 1820 and 1840. It marked a major turning point in history and almost every aspect of daily life was influenced in some way. In particular, average income and population began to exhibit unprecedented sustained growth.
In the early 20th century most states adopted the system for local and state races—but only 14 used it for delegates to the national presidential nominating conventions. The biggest battles came in New York state, where the conservatives fought hard for years against several governors until the primary was finally adopted in 1913.
These timelines of world history detail recorded events since the creation of writing roughly 5000 years ago to the present day. For events from c. 3200 BC – c. 500 see: Timeline of ancient history; For events from c. 500 – c. 1499, see: Timeline of post-classical history; For events from c. 1500, see: Timelines of modern history