March 31, 1975 fell on a Monday.
31 March 1969 was a Monday.
March 31 1973 was a Saturday.
March 31 1999 was a Wednesday.
March 31 2010 was a Wednesday
March 31, 1949 was a Thursday.
Wednesday
31st May 1975 was a Saturday.
March 31, 1971 fell on a Wednesday.
March 31, 1984 fell on a Saturday.
March 31, 1951 fell on a Saturday.
March 31, 1959 fell on a Tuesday.
March 31, 1983 fell on a Thursday.