It was a Saturday.
Any day of the week that you like. Just pick an appropriate year.
April 19 1933 was a Wednesday.
19 April 1979 was a Thursday.
19 April 1995 was a Wednesday.
19 April 1775 was a Wednesday.
April 19, 1999 was a Monday.
April 19, 1951 was a Thursday.
December 19, 1997 fell on a Friday.
February 19, 1997 falls on a Wednesday.
19 April 1964 was a Sunday.
April 19, 1958 fell on a Saturday.
April 19, 1971 fell on a Monday.