Magna Carta Libertatum, commonly called Magna Carta, is a charter agreed to by King John of England at Runnymede, near Windsor, on 15 June 1215
During the 1920s African American lives became better significantly better because their lives were changed socially and politically giving them more opportunities. (I hope this helps you :-} )
These were called the Palmer raids and were a part of the red scare. He did it because they were accused of being communists and anarchists, or were just too much left and liberal. This was out of fear that they might get enough people and start their own revolution in the country.