What was the situation for the majority of people toward the end of the 1200s around the world? 80-90% were either serfs or slaves and lacked freedom
There was a dramatic growing of wealth for people leading to greater rights
Greater world trade was allowing more freedom of movement
Most began to work as laborers in factories​

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

no one really purchased it themselves, it was all america, they had debates etc.