<Tr> <Th> Major </Th> <Td> 22 </Td> </Tr> <Tr> <Th> World Champion </Th> <Td> 1927--1940, 1946 </Td> </Tr> <P> Joseph Davis, OBE (15 April 1901--10 July 1978) was an English professional snooker and English billiards player . He was the dominant figure in snooker from the 1920s to the 1950s . He won the first 15 World Championships from 1927 to 1946 . </P> <P> After his 1946 victory he no longer played in the World Championship but continued to play in other tournaments and exhibition matches until the late 1950s . He was World Billiards Champion 4 times between 1928 and 1932 . </P>

How many times did joe davis won the world championship
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