It's the 13th month of the 13th year of the new millennium.
9/30/2013
6/22/1988
1/1/1993
1/1/2000
1/20/1936
12/11/1980
7/13/1990
3/3/1975
1/1/1992
11/20/1999
4/22/1976
11/24/1995
3/29/1987
9/13/2019
Invalid Date
3/7/1962
2/13/1973
10/21/1992
10/22/1982
10/20/1995
10/13/1926