Who was the 20 President? When was he/she born?

What was the result of delegates from the democratic party not being able to nominate a candidate in 1860

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

Plz the 10 places that charles darwin stopped at to report his findings, and include dates?