Simplify the following text for a Grade 10 native English-speaking person.
Original: Robinson also chaired the National Association for the Advancement of Colored People 's ( NAACP ) million-dollar Freedom Fund Drive in 1957 , and served on the organization 's board until 1967 .
Simplified: Robinson also chaired the National Association for the Advancement of Colored People 's ( NAACP ) million-dollar Freedom Fund Drive in 1957 . He served on the organization 's board until 1967 .