What was one important contribution of Archimedes? he discovered that earth circles around the sun
he figured out the value of pi
he discovered the the earth is round
he measured the circumference of earth

Draw conclusions  why might a cause like italian unification successfully draw people of very different backgrounds together?  

What made the middle colonies different from new england and the southern colonies?

Why did the federal government choose to give each tribal member a 25-year deed to the reservation land? this was the life expectancy of native americans at this time, and the government wished to grant rights for only a single generation. they considered this to be enough time to keep the area calm before they could take the land back again for sale. the united states government believed that the nutrients from the land would be depleted by the end of the deed. the government believed this would be enough time for the tribal members to become self-reliant and adapt to the farming lifestyle.