What historical event directly led to the end of available frontier lands for settlement?

a) homestead act of 1862
b) 1849 gold rush
c) oklahoma land rush
d) railroad act of 1862

Science made little real progress in europe in the middle ages because most scholars thought that all knowledge must fit with church teachings. science was considered to be related to magic and witchcraft. the study of science was banned from medieval universities. translations of greek science texts still had not reached medieval europe.

Underline the sentence that describes washington's first cabinet. what branch of the government is the cabinet in?

What is one way china and canada are different