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Sinking of the Lusitania
The sinking of the Cunard ocean liner RMS Lusitania occurred on Friday, 7 May 1915 during the First World War, as Germany waged submarine warfare against the United Kingdom of Great Britain and Ireland and the British Royal Navy blockaded Germany. -
Zimmerman Telegram
The Zimmerman Telegram (or Zimmerman Note) was an internal diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexico in the event of the United States' entering World War I against Germany. -
18th Amendment
The Eighteenth Amendment (Amendment XVIII) of the United States Constitution effectively established the prohibition of alcoholic beverages in the United States by declaring the production, transport, and sale of alcohol (though not the consumption or private possession) illegal -
19th Amendment
The Nineteenth Amendment (Amendment XIX) to the United States Constitution prohibits any United States citizen from being denied the right to vote on the basis of sex. -
20th Amendment
The Twentieth Amendment (Amendment XX) to the United States Constitution moved the beginning and ending of the terms of the president and vice president from March 4 to January 20, and of members of Congress from March 4 to January 3. -
21st Amendment
The Twenty-first Amendment (Amendment XXI) to the United States Constitution repealed the Eighteenth Amendment to the United States Constitution, which had mandated nationwide Prohibition on alcohol on January 17, 1920. -
Jim Crow Laws
Jim Crow laws were state and local laws enforcing racial segregation in the Southern United States. Enacted after the Reconstruction period, these laws continued in force until 1965. They mandated de jure racial segregation in all public facilities in states of the former Confederate States of America, starting in 1890 with a "separate but equal" status for African Americans. -
John Scopes
John Thomas Scopes (August 3, 1900 – October 21, 1970) was a teacher in Dayton, Tennessee, who was charged on May 5, 1925 for violating Tennessee's Butler Act, which prohibited the teaching of evolution in Tennessee schools. He was tried in a case known as the Scopes Trial, in which he was found guilty and fined $100.