American needed more people to work
The correct answer is the Indian Removal Act of 1830 or also known as the Trail of Tears, wherein it called for the relocation of all the existing Eastern tribes, there are 5 known civilized tribes that were resettled in the present location known as Oklahoma.
Answer: it's unclear why marsupials thrived in Australia. however one plan is that once times were powerful, marsupial mothers might jettison any developing babies they'd in their pouches, whereas mammals had to attend till gestation was over, defrayment precious resources on their young, Beck said.
Explanation:
To hold off till they were all in one place
The main focus city of the Crusades was Jerusalem. The idea was that it was Christian territory, or at least should be Christian territory, and they always went to reconquer it. The fourth Crusade never made it to Jerusalem because they were busy sacking Constantinople which had a lot of troubles due to constant wars of the Byzantine Empire.