1 Jan 1918: Spanish Flu pandemic The first cases of the devastating influenza pandemic were reported in the U.S.
11 Nov 1918: Armistice Day An armistice was signed, ending World War I.
2
1919
1 Jan 1919: 18th Amendment ratified The 18th Amendment, which prohibited the manufacture, sale, or transportation of alcoholic beverages, was ratified.
3
1920
19 Jan 1920: Prohibition begins The Volstead Act went into effect, implementing the 18th Amendment.
18 Aug 1920: 19th Amendment ratified The 19th Amendment was ratified, granting American women the right to vote.
