African-americans

Martin Luther King Jr. fought for civil rights for African-Americans by teaching nonviolence.

A team of international researchers studied what would happen if African-Americans and rural South Africans swapped diets for two weeks. Colon cancer rates are much lower in rural South Africa, where people consume a high-fiber, low-fat diet typical of Africans.

Today, hundreds of thousands of African-Americans across the U.S. observe Kwanzaa during the week leading up to New Year's Day on January 1.

It is estimated that between 500,000 and as many as three million African-Americans observe the holiday, which culminates in a feast on January 1.