March 21st is so important because it is one of the two equinoxes. It is a day when there is an equal amount of daylight and darkness. In the northern hemisphere it is the first day of spring and the world rotates on its axis so we have longer and warmer days. In the Southern Hemisphere it marks the start of autumn.
March 21 1962 was a Wednesday.
March 21, 1966 was the 3rd Monday in March for that year.
March 21. 2009 March 21. 2009
San Antonio - March 17-21. Houston - March 17 - 21. Austin March 17-21. Corpus - March 17-21. Dallas March 10-14.
March 21 1994 was a Monday.
March 21 1964 was a Saturday.
21 March 1950 was a Tuesday.
21 March 1959 was a Saturday.
March 21, 2003 fell on a Friday.
March 21 2005 was a Monday.
March 21 1946 was a Thursday.
March 21, 1986, was a Friday.