1963 was a common year which started on a Tuesday, so 13th February was a Wednesday.
February 17 1963 was a Sunday.
February 13 1947 was a Thursday.
Wednesday
It fell on a Thursday.
Using the Gregorian calendar, the day would have been a Wednesday. On the Julian calendar the day was a Sunday.
February 13th 1963 was a Wednesday
25 February 1963 was a Monday.
February 21st, 1963 was a Thursday.
February 17 1963 was a Sunday.
February 6, 1963 fell on a Wednesday.
February 11, 1963, was a Monday.
February 28, 1963 was a Thursday.
February 22, 1963 fell on a Friday.
February 11th, 1963 fell on a Monday.
February 8, 1963 fell on a Friday.
February 6, 1963 fell on a Wednesday.
February 12, 1963 fell on a Tuesday.