During the period 1450-1750, the natural world replaced the religious doctrine where the renaissance cultural promoted the secular values over religion. It is then that the humanists questioned and exposed many assumptions as false and this weakened the theorical underpinnings. Renaissance encouraged people to querry, get knowledge and change which would have not been the case in the middle age. This eventually led to the end of christendom's old idea and the the rise of protestant
The advantages that the United States had were that it was wealthier, larger, and more populous than Mexico. America also had industries to supply it with arms and ammunition as well as a larger and better navy and more advanced artillery.
