Today is Wednesday, March 14, the 73rd day of 2018. There are 292 days left in the year.
On March 14, 1923, President Warren G. Harding became the first chief executive to file an income tax return, paying a levy of $17,990 on his $75,000 salary.
In 1794, Eli Whitney received a patent for his cotton gin, an invention that revolutionized America's cotton industry.
In 1885, the Gilbert and Sullivan comic opera "The Mikado" premiered at the Savoy Theatre in London.
In 1900, Congress ratified the Gold Standard Act.
In 1907, President Theodore Roosevelt signed an executive order designed to prevent Japanese laborers from immigrating to the United States as part of a "gentlemen's agreement" with Japan.
In 1939, the republic of Czechoslovakia was dissolved, opening the way for Nazi occupation of Czech areas and the separation of Slovakia.
In 1951, during the Korean War, United Nations forces recaptured Seoul.
In 1964, a jury in Dallas found Jack Ruby guilty of murdering Lee Harvey Oswald, the accused assassin of President John F. Kennedy, and sentenced him to death. (Both the conviction and death sentence were overturned, but Ruby died before he could be retried.)
In 1967, the body of President John F. Kennedy was moved from a temporary grave to a permanent memorial site at Arlington National Cemetery in Virginia.
In 1975, "Monty Python and the Holy Grail," a sendup of the legend of King Arthur, had its world premiere in Los Angeles. Academy Award-winning actress Susan Hayward, 57, died in Los Angeles.
In 1980, a LOT Polish Airlines jet crashed while attempting to land in Warsaw, killing all 87 people aboard, including 22 members of a U.S. amateur boxing team.
In 1990, the Soviet Congress of People's Deputies held a secret ballot that elected Mikhail S. Gorbachev to a new, powerful presidency.
In 1998, India's Congress party picked Sonia Gandhi, the Italian-born widow of assassinated prime minister Rajiv Gandhi, as its new president.