Mack Robinson, brother of Jackie Robinson, medaled in the 1936 Olympic Games in Berlin. Upon returning home to California, the only work he could find as an African American was sweeping streets, which he did while wearing his Olympic 'USA' sweatshirt. #Olympics2018 https://t.co/LfaMPK75nt

Erin Jackson has only been long track speed skating for four months, but she became the first African American woman to qualify for the U.S. Olympic long track speed skating team. #Olympics2018 https://t.co/OCNxXhz94O

Athletes John Carlos and Tommie Smith made history when they raised their black-gloved fists on the awards stand at the 1968 Olympics. Both also wore Black socks and no shoes on the podium, representing Black poverty in America #BlackHistoryMonth #Olympics2018 https://t.co/tBxpaqycHT