Explain the reasons why millions of people immigrated from europe and asia to the united states during the 19th and 20 centuries.

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.

What was the land like around rome? dry rocky fertile volcanic

Concentration camps built by nazis in 1933 initially held