It led to the need to seek agricultural land to grow more food for Europeans.
It created a desire for more cultural exchanges among different racial groups.
The ideals of economic freedom are strongly associated with healthier societies, cleaner environments, greater per capita wealth, human development, democracy, and poverty elimination
I hope this helps =)
I know a lot of history of Dr.King himself. When he said let 'Let freedom ring" he's using Anaphora.
Manifest destiny was the reason the US claimed Oregon country.