1940 2 23 | 1905.2.26 - | 1940.2.23 | | | 1947 2 23 | | 1951 2 23 | | | | | 1979 2 23 | 3 | 12 | | 1980 2 23 | | | | 1988 2 23 | | | | 1998 2 23 | | Stephen William | Hawking | |