Historically which group has been required to wear distinctive clothing to indicate their race?

Historically, various groups have been required to wear distinctive clothing to signify their race, but one prominent example is the Jewish community in medieval Europe, who were often forced to wear badges or pointed hats. Additionally, in the United States, African Americans were subjected to laws that enforced segregation, including specific clothing requirements during the Jim Crow era. These practices aimed to visually mark and discriminate against marginalized groups.