Did Confederates fly all-black American flags?

Social media users are touting their "no quarter" black American flags. Some say they originated with the Confederacy, but historians say that's not true.

Why is the Confederate flag so offensive?

Black American Flag - Rebel Nation

EXPLAINED: Black American Flags, and Why Trumpers Are Flying Them

NASCAR moving on from flap over Confederate flag

NASCAR bans Confederate flag from its races - POLITICO

Raise The Black - Pirate Flag - Posters and Art Prints

How the Confederate battle flag became an enduring symbol of racism

Confederate Flag Raised at South Carolina Statehouse in Protest by Secessionist Party

What Does a Black and White American Flag Mean? – BestFlag

Trump Supporters Are Waving Black American Flags. Here's Why That May Mean Trouble

7 state flags still have designs with ties to the Confederacy - The Washington Post