How long did the exploration of the louisiana purchase last that was ordered by president jefferson?

Which sentence best describes the effect of the bill of rights

Congress could only request money and had no power to tax; each state made its own money; there was no national court system. which one of these weaknesses do you believe was the most important to correct?

Describe how the ways in which african americans migrated during the great migration were similar to the immigrants who arrived from other countries in the early 1900s.