Why did many white southerners fear free african americans?

How do you imagine life would be without the invention of the typewriter? would computers have been invented?

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.

Which type of constitutional power allows congress to regulate immigration and naturalization?