This Day in History (1984):
Navy Captain Bruce McCandless became the first human being to fly untethered in space. 

February is American Heart Month. 

February 7th is:
Charles Dickens' Birthday (1812)
Laura Ingalls Wilder's Birthday (1867)
National Fettuccine Alfredo Day
National Girls & Women in Sports Day
Wave All Your Fingers at Your Neighbors Day
Send a Card to a Friend Day
Pinocchio Day (1940)
Ballet Day

For more info about the "On This Day", please visit History.com
I've collected these from around the Internet, so if you find an error or know of another one, let me know!  Thanks!