Who were the first europeans to settle in the americas during the age of exploration? a. english b. french c. portuguese d. spanish

When did paul zoll develop cardiac pacemaker

What potential crisis did eleanor roosevelt resolve on behalf of president roosevelt

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy