The Warriors later joined the NBA at its foundation in 1949 .
The Warriors initially joined the Basketball Association of America ( BAA ) as the Philadelphia Warriors in 1946 , and won the first BAA championship title in the same year under coach Edward Gottlieb .
The Philadelphia Warriors later joined the BAA at Warriors ' foundation in 1949 .
The Warriors initially joined the Basketball Association of America ( BAA ) as the Philadelphia Warriors in 1946 , and won the first BAA championship title in the same year under coach Edward Gottlieb .