Simplify the following text for a Grade 6 native English-speaking person.
Original: On April 15 , 1947 , Robinson made his major league debut at Ebbets Field before a crowd of 26,623 spectators , including more than 14,000 black patrons .
Simplified: On April 15 , 1947 , Robinson played his first major league game at Ebbets Field in front of a crowd of 26,623 spectators . More than 14,000 black fans attended the game .