<Tr> <Th> Championships </Th> <Td> 17 ( 1957 , 1959 , 1960 , 1961 , 1962 , 1963 , 1964 , 1965 , 1966 , 1968 , 1969 , 1974 , 1976 , 1981 , 1984 , 1986 , 2008 ) </Td> </Tr>
<Tr> <Th> Championships </Th> <Td> 17 ( 1957 , 1959 , 1960 , 1961 , 1962 , 1963 , 1964 , 1965 , 1966 , 1968 , 1969 , 1974 , 1976 , 1981 , 1984 , 1986 , 2008 ) </Td> </Tr>
when did the celtics win their last championship
when did the celtics win their last championship
2008
2008