San Jose joined the California League in 1942 without an affiliate as the San Jose Owls. The league was suspended half-way through their inaugural season, but San Jose returned to the league in 1947 as the San Jose Red Sox affiliated with the Boston Red Sox. In 1956 San Jose was without an affiliate again and re-named the San Jose JoSox. The next 30 seasons, San Jose had a variety of MLB affiliates and team names including the Pirates, Bees, Missions, and Expos. In 1988 San Jose started an affiliation with the San Francisco Giants which continues to this day. San Jose has 10 California League Championships including, most recently, their back-to-back titles in 2009 and 2010. Their ballpark, now called Excite Ballpark, but most notably known as San Jose Municpal Stadium was built in 1942 and is the oldest active ballpark in the California League. In their vast history, San Jose has been a stepping stone to many notable MLB players, see the list above!