The Odell S. Williams Now And Then African-American History Museum or the Baton Rouge African-American Museum, is a non-profit museum of African-American history and heritage located in Baton Rouge, Louisiana, United States. The museum is named for Odell S. Williams, an educator in Baton Rouge, Louisiana. Founded by Sadie Roberts-Joseph in 2001, the museum remains the only museum dedicated to African and African American history, in the capital city of Louisiana. The museum celebrates Juneteenth, Black History Month, and American history year round.