BLACK IN LATIN AMERICA premieres tonight on PBS at 8 p.m.

“Upward of 120 million people of African descent live in Latin America today,’’ says Harvard professor Henry Louis Gates Jr., who, even though he is a scholar of African-American history, says he was staggered by the number when he first learned of it.

[Black History] Dred Scott v. Sandford

Dred Scott v. Sandford (1857), was a ruling by the U.S. Supreme Court that people of African descent imported into the United States and held as slaves or their descendants, were not protected by the Constitution and could never be U.S. citizens.