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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 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 Harlem Renaissance grew out of the changes that had taken place in the African-American community since the abolition of slavery, as the expansion of communities in the North. These accelerated as a consequence of World War I and the great social and cultural changes in the early 20th-century United States. Industrialization attracted ...
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.
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 average home value, meanwhile, climbed to $359,099 in October, up by 2.6% annually, Zillow said. And per Freddie Mac, the rate on the 30-year fixed mortgage edged up to 6.84% last week.
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