CREATE TABLE table_24470 ("Team" TEXT, "Sport" TEXT, "League" TEXT, "Established" FLOAT, "Began in St. Louis" FLOAT, "Venue" TEXT, "Championships in St. Louis" TEXT, "Left St. Louis" FLOAT)

How may championships were won by the team that started in 1950?
SELECT "Championships in St. Louis" FROM table_24470 WHERE "Began in St. Louis" = '1950'
SELECT "Championships in St. Louis" FROM "table_24470" WHERE "Began in St. Louis" = '1950'