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As a result, Ford's cars came off the line in fifteen minute intervals, much faster than previous methods, increasing productivity eight fold (requiring 12.5 man-hours before, 1 hour 33 minutes after), while using less manpower.
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Henry Ford introduced the model t to the market giving people a new way of transportation.
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Prohibition started with the ratifying of the 18th Amendment.
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By October 150000 names were collected in a rapidly expanding index. Palmer Raids are a series of controversial raids.
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Palmer's agents gathered 249 citizens and immigrants of Russian origin
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This allowed african americans to do more and slowly be acepted into professional baseball.
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Judge George Anderson effectively ended the raids when he ordered the discharge of twenty aliens, and denounced Department of Justice actions.
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The 19th Amendement allowed women to vote
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Radio is the transmission of signals by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. Information is carried by systematically changing some property of the radiated waves, such as amplitude, frequency, or phase.
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Days after Sacco and Vanzetti's murder indictment, a horsecart filled with dynamite exploded in the financial heart of New York City.
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The KKK attacked a black community because two black men voted. 6 black and 2 whites were killed and including the destruction of many buildings.
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The Emergency Quota Act was an immigration quota that limited the annual number of immigrants who could be admitted from any country to 3% of the number of persons from that country living in the United States in 1910.
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60 blacks and 25 whites were killed in a series of senseless attacks and the KKK were labeled as the instigators.
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A radial arm saw is a cutting machine consisting of a circular saw mounted on a sliding horizontal arm.
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A bulldozer is a crawler or a continuous tracked tractor, equipped with a substantial metal plate or blade, used to push large quantities of soil, sand, or rubble during construction work.
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The 1924 law established the “consular control system” of immigration by mandating that no alien may be permitted entrance to the United States without an unexpired immigration visa issued by an American consular officer abroad. Thus, the State Department and the Immigration and Naturalization Service shared control of immigration
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The number of immigrants of a given nationality each year could not exceed 2 percent of the number of people living in the US in 1890.
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Flappers was a group of women who influenced styles and attitudes.
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The phonograph allowed people to listen to the same music they heard on the radio, but whenever they wanted.
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The Harlem Globetrotters were created in 1927. The Harlem Globetrotters gave people a look on Harlem.
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A silent film is a film with no synchronized recorded sound, especially spoken dialogue. In entertainment silent films the acting and dialogue is commuted through muted gestures, pantomime and title cards.
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The ratifying of the 21st Amendment repealed the the 18th Amendment ending Prohibition.
