I need help!! How the changes in technology from spear, to atlatl, to bow and arrow improve the American Indian’s way of life? Did these changes come slowly or quickly? Explain

What evidence is there of early people being able to specialize in doing activities which made life better for the whole society?

Sparta faces threats from without and within the city-state who posed these threats.

"if i have seen farther than others," said newton, "it is because i have stood on the shoulders of giants." who were the giants to whom newton was referring? could this be said of any scientific accomplishment? explain.

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.