It was a Thursday - according to Windows built-in calendar !
28 February 1983 was a Monday.
28 February 1958 was a Friday.
28 February 1975 was a Friday.
February 28 1935 was a Thursday.
February 28 1946 was a Thursday.
February 28 1991 was a Thursday.
February 28 2010 was a Sunday.
February 28, 1963 was a Thursday.
February 28, 1858 was a Sunday.
February 28, 1973, was a Wednesday.
February 28 1953 was a Saturday.
February 28, 1951 fell on a Wednesday.