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The 1920s was a period of social revolution, coming out of World War I, society changed as inhibitions faded and youth demanded new experiences and more freedom from old controls. Chaperones faded in importance as "anything goes" became a slogan for youth taking control of their subculture. [ 75 ]
The 1920s (pronounced "nineteen-twenties" often shortened to the "' 20s" or the "Twenties") was a decade that began on January 1, 1920, and ended on December 31, 1929. . Primarily known for the economic boom that occurred in the Western World following the end of World War I (1914–1918), the decade is frequently referred to as the "Roaring Twenties" or the "Jazz Age" in America and Western ...
Advances in biology led to large increases in food production, as well as the elimination of diseases such as polio. A massive amount of new technologies were developed in the 20th century. Technologies such as electricity , the incandescent light bulb , the automobile and the phonography , first developed at the end of the 19th century, were ...
Inputs to the modern synthesis, with other topics (inverted colours) such as developmental biology that were not joined with evolutionary biology until the turn of the 21st century [103] Biologists, alongside scholars of the history and philosophy of biology, have continued to debate the need for, and possible nature of, a replacement synthesis.
The Golden Twenties (German: Goldene Zwanziger), also known as the Happy Twenties (German: Glückliche Zwanziger), was a five-year time period within the decade of the 1920s in Germany. The era began in 1924, after the end of the hyperinflation following World War I , and ended with the Wall Street Crash of 1929 .
July 1: Colombo Plan, a regional organisation of 27 countries designed to strengthen economic and social development of member countries in the Asia-Pacific region, commences. September 8: The Treaty of San Francisco ends the Occupation of Japan and formally concludes hostilities between Japan and the US.
The firm pointed to recent changes in the 30-year fixed mortgage rate, which fell this year before climbing to nearly 7% as markets adjusted their expectations for borrowing costs amid sticky ...
Recent changes; Upload file; Search. Search. Appearance. ... 2 Biology. 3 Chemistry. ... The year 1920 in science and technology involved some significant events, ...