Answer:
using savings stampsemploying new technologies
The new line would support communities and military outposts on the frontier. It would give settlers safe and dependable passage west. And most importantly, it would tie new states California and Oregon to the rest of the country. it would also help deliver mail across the nation much faster
Either they crossed over the land bridge following their food, or they were moving by means of water across the Bering strait
As a result from McCulloch vs Maryland, two very important consequences aroused. First, the doctrine of the "implied powers" , understanding that the Constitution grants said implied powers to the Congress to implement the express powers. Secondly, that no state action can interfere with valid constitutional exercise of power by the federal government.
