The given date was a Thursday.
February 11th 1987 was a Wednesday.
February 11th, 1900 was a Sunday.
February 11th, 1963 fell on a Monday.
March 11th, 1999 fell on a Thursday.
It was a Wednesday.
Thursday
Thursday
It was a Monday.
It was a Saturday.
It was a Friday.
May 11, 1999 was a Tuesday.
Monday.