-
Henry Ford perfected mass production by creating the moving assembly line in 1913, a system where each worker performed a single, repetitive task as the automobile moved along a conveyor belt. This dramatically reduced the time needed to build a car from over 12 hours to just an hour and a half, while standardizing parts and lowering the Model T's price from $825 to $260, making it accessible to the average American.
-
A series of raids conducted in November 1919 and January 1920 by the United States Department of Justice under the administration of President Woodrow Wilson to capture and arrest suspected socialists, especially anarchists and communists, and deport them from the United States. The raids particularly targeted Italian immigrants and Eastern European Jewish immigrants with alleged leftist ties, with particular focus on Italian anarchists and immigrant leftist labor activists.
-
The 19th Amendment was passed by Congress on June 4, 1919, and officially became part of the U.S. Constitution after being ratified by the 36th state, Tennessee, on August 18, 1920. It was certified on August 26, 1920, legally granting American women the right to vote.
-
Prohibition began on January 17, 1920, when the Eighteenth Amendment, which banned the manufacture, sale, and transportation of alcoholic beverages, went into effect in the United States. The Volstead Act provided the enforcement mechanism for this nationwide ban.
-
Nicola Sacco and Bartolomeo Vanzetti were convicted of murder and robbery in 1921, sparking international protests and controversy that led to their executions in 1927. Their conviction was due to evidence, including a gun belonging to Sacco, but critics argue the trial was prejudiced against them due to their Italian immigrant and anarchist backgrounds, and that the judge, Webster Thayer, showed bias.
-
The Teapot Dome scandal was a political corruption scandal in the United States involving the administration of President Warren G. Harding. It centered on Albert B. Fall, the Interior Secretary, who had leased petroleum reserves designated for the Navy at Teapot Dome in Wyoming, as well as two locations in California, to private oil companies at low rates without competitive bidding.
-
The Harlem Renaissance began around the end of World War I (circa 1917) and flourished throughout the 1920s and early 1930s. However, some suggest specific starting points like the publication of Claude McKay's "The Harlem Dancer" in 1917. It was fueled by the Great Migration, which saw a massive influx of African Americans into the Harlem neighborhood of New York City, seeking to escape the oppression of the Jim Crow South.
-
The State of Tennessee v. John Thomas Scopes, commonly known as the Scopes trial or Scopes Monkey Trial, was an American legal case from July 10 to July 21, 1925, in which a high school teacher, John T. Scopes, was accused of violating the Butler Act, a Tennessee state law that outlawed the teaching of human evolution in public schools.
-
On May 20, 1927, Charles Lindbergh completed the first solo, nonstop flight across the Atlantic Ocean, flying from Long Island, New York, to Paris, France. His flight, aboard the single-engine plane named the Spirit of St. Louis, took 33 and a half hours and covered approximately 3,610 miles. The achievement made him an international hero and dramatically increased public interest in aviation.
-
The Kellogg-Briand Pact was signed on August 27, 1928, in Paris, France. The treaty, also known as the Pact of Paris, renounced war as an instrument of national policy and committed the signatories to settling disputes peacefully. It was a multilateral agreement initiated by U.S. Secretary of State Frank B. Kellogg and French Foreign Minister Aristide Briand.
-
Black Tuesday refers to the catastrophic stock market crash that occurred on October 29, 1929, on the New York Stock Exchange. This event, characterized by panic selling and a massive loss of value, is widely recognized as marking the beginning of the Great Depression in the United States and the wider industrialized world.