President's Day (United States)

United States celebrated Presidents Day on the third Monday of February( February 18 in 2013) in honor of George Washington who was the first president of United States.

Former planet Pluto Discovered

 

Former planet, Pluto, Discovered By Clyde Tombaugh on 18 February 1930.From its discovery in 1930 until 2006, Pluto was classified as a planet.