February 10, 1870 (156 years ago)
•The YWCA is founded (New York City).

February 10, 1933 (93 years ago)
•The New York City-based Postal Telegraph Company introduces the first singing telegram.

February 10, 1967 (59 years ago)
•The 25th Amendment to the United States Constitution is ratified, The 25th Amendment to the United States Constitution is ratified, defining succession to the Presidency

February 10, 1996 (30 years ago)
•The IBM supercomputer Deep Blue defeats Garry Kasparov for the first time.

February 10, 1998 (28 years ago)
•Voters in Maine repeal a gay rights law passed in 1997 becoming the first U.S. state to abandon that law.