Who were Lewis and Clark, Zebulon Pike, and Sacagawea? Why are they important in American history?

What from the columbian exchange had perhaps the biggest impact on the world?

How are the perspectives presented in the excerpts similar? they show the disappointment and fear mission control workers feel when the lunar module develops problems. they show the huge investment of time and energy mission control workers dedicated to the lunar module. they show how mission control workers view the lunar module as if it is the workers' very own child. they show the relief and excitement mission control workers feel when the lunar module lands on the moon.

In the period from 1860 to 1890, which experience was shared by most native americans living in western states?