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. In America, it is frequently referred to as the "Roaring Twenties" or the "Jazz Age", while in Europe the period is sometimes referred to as the "Golden Twenties" because of the economic boom following World War I (1914–1918). French speakers refer to the period as the "Années folles" ('crazy years'), emphasizing the era's social, artistic, and cultural dynamism.
During the 1920s, the world population increased from 1.87 to 2.05 billion, with approximately 700 million births and 525 million deaths in total. (Full article...)
During the ceremony, AMPAS presented Academy Awards – later to be colloquially known as "Oscars," in 12 categories. The winners had been announced three months ahead of the ceremony. Some nominations did not reference a specific film, such as Ralph Hammeras and Nugent Slaughter, who were nominated for Engineering Effects, a category that was dropped the following year (along with those for Unique and Artistic Production, Best Director (Comedy), and Best Title Writing). Unlike later ceremonies, an actor could be awarded for multiple films: Emil Jannings won Best Actor for his work in both The Way of All Flesh and The Last Command, while Best Actress winner Janet Gaynor was honored for three films. Charlie Chaplin and Warner Brothers each received an honorary award. Jannings, a Swiss-born performer who gained fame in Berlin, had been notified in advance of his victory; he subsequently posed for pictures with his statuette before leaving for Germany. (Full article...)
Bohr developed the Bohr model of the atom, in which he proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another. Although the Bohr model has been supplanted by other models, its underlying principles remain valid. He conceived the principle of complementarity: that items could be separately analysed in terms of contradictory properties, like behaving as a wave or a stream of particles. The notion of complementarity dominated Bohr's thinking in both science and philosophy. (Full article...)
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... that in the 1920s, Hickson Inc. had the "most elegant and expensive specialty shop" on New York's Fifth Avenue?
... that Cleo Damianakes's 1920s book dust jacket designs "made sex respectable", but Hemingway did not like the "large misplaced breasts" on A Farewell to Arms?
... that 1920s and 1930s radio show actress Artie Belle McGinty played the original radio advertisement voice for Aunt Jemima?
... that in the 1920s, Australian journalist E. George Marks predicted military conflict in the Pacific between Japan and the United States?
... that the serial arsonist who started the fatal Nihon Shōgakkō fire confessed to starting at least 25 other California fires in the early 1920s?
... that in the 1920s, Austrian painter Richard Geiger produced numerous portraits of the character Pierrette?
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