At its height what was the Slave poplation the US?

Why were many freed black men inspired to join the Union army? Do Incan people use picture writing? What factor led to two different ways of life in the North and South? What is the value of a 1920 US 2 Dollar Bill? What change did the end of the Civil War bring in the lives of most African Americans in the Southeast? Where were most of the 911 hijackers born? Who let all the slaves free? How does this statement help to explain why so many non-slaveholding Southerners supported secession? Who won the Black Hawk War? What was the difference between abolitionists and people who were anti slavery? Why were the north and south fighting during the civil war? What did harpers ferry hope to accomplish by seizing 100000 weapons at the US? Who is Sarah Lincoln? What was the first country to recognize the US as an independent nation? What year did silver get taken out of quarters? What is the value of a US liberty coin? The unity of the US currency was lost with the? What is the Value of a tiny Indian head penny 1903? Who owns Ethan Allen in paramus NJ? Who made the rule in Jamestown that anyone who did not work did not eat?

At its height what was the Slave poplation the US?