April 23 is the 113th day of the year (114th in leap years) in the Gregorian calendar. There are 252 days remaining until the end of the year.
+ 1635 – The first public school in the United States, Boston Latin School, is founded in Boston.
+ 1879 – Fire burns down the second main building and dome of the University of Notre Dame, which prompts the construction of the third, and current, Main Building with its golden dome.
+ 1914 – First baseball game at Wrigley Field, then known as Weeghman Park, in Chicago.
+ 2005 – The first ever YouTube video, titled "Me at the zoo", was published by user "jawed".
( Births )
+ 1923 – Dolph Briscoe, American lieutenant and politician, 41st Governor of Texas (d. 2010)
+ 1928 – Shirley Temple, American actress, singer, dancer, and diplomat (d. 2014)
+ 1936 – Roy Orbison, American singer-songwriter (d. 1988)
+ 1939 – Lee Majors, American actor
+ 1977 – John Cena, American professional wrestler and actor