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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 ]
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.
Because social evolution was posited as a scientific theory, it was often used to support unjust and often racist social practices – particularly colonialism, slavery, and the unequal economic conditions present within industrialized Europe. Social Darwinism is especially criticised, as it purportedly led to some philosophies used by the Nazis.
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 ...
The history of biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine and the works of Aristotle, Theophrastus and Galen in the ancient Greco-Roman world.
1920 (United States) Clothing Workers' Lockout occurred. [30] 2 January 1920 (United States) The U.S. Bureau of Investigation began carrying out the nationwide Palmer Raids. View of Matewan, West Virginia. Matewan Historic District, a National Historic Landmark, was the site of the Battle of Matewan in May 1920 during a coal miners' strike.
Frederick Griffith (1877–1941) was a British bacteriologist whose focus was the epidemiology and pathology of bacterial pneumonia.In January 1928 he reported what is now known as Griffith's Experiment, the first widely accepted demonstrations of bacterial transformation, whereby a bacterium distinctly changes its form and function.