April 10 is the 100th day of the year. There are 265 days remaining until the end of the year. This date is slightly more likely to fall on a Tuesday, Friday or Sunday (58 in 400 years each) than on Wednesday or Thursday (57), and slightly less likely to occur on a Monday or Saturday (56).
+ 837 – Halley's Comet makes its closest approach to Earth at a distance equal to 0.0342 AU (5.1 million kilometres/3.2 million miles).
+ 1865 – American Civil War: A day after his surrender to Union forces, Confederate General Robert E. Lee addresses his troops for the last time.
+ 1872 – The first Arbor Day is celebrated in Nebraska.
+ 1970 – Paul McCartney announces that he is leaving The Beatles for personal and professional reasons.
+ 1979 – Red River Valley tornado outbreak: A tornado lands in Wichita Falls, Texas killing 42 people.
+ 1921 – Chuck Connors, American baseball player and actor (d. 1992)
+ 1936 – John Madden, American football player, coach, and sportscaster
+ 1938 – Don Meredith, American football player and sportscaster (d. 2010)
+ 1950 – Ken Griffey, Sr., American baseball player and manager