World Heavyweight Boxing Champion Muhammad Ali, A Black Muslim, Attends The Sect's Service To Hear Elijah Muhammad Deliver… https://www.rawpixel.com/image/8765593/photo-image-vintage-people-menFree Image from public domain licenseTraining boxing gloves used and signed by Cassius Clay, National Museum of African American History and Culture https://www.rawpixel.com/image/8846766/photo-image-art-vintage-public-domainFree Image from public domain license