Why was the struggle for civil rights more difficult because of the seperate but equal doctrine established in in the plessy v ferguson case?

Why are primary sources important when studying historical events

The massacre at sand creek was an attack by a colorado militia on peaceful american indians. a colorado militia on a group of dakota warriors. american indians on peaceful white settlers. federal soldiers on a group of cheyenne warriors.

How was hitler able to take control of czechoslovakia? ? a) czechoslovakia was forced to break its alliance with france & the soviet union to appease hitler b) without resistance, he extended his control of the sudetenland to include all of czechoslovakia c) the czechs reluctantly agreed to provide “lebensrum, or living space to the germans d) he was given czechoslovakia by great britain and france in keeping with the policy of containment. appreciate the