The Louisiana purchase is related to manifest destiny because Manifest destiny was just a plan to expand on North America. The Louisiana helped attain this by doubling the size of the USA before it's purchase. read more
The idea of Manifest Destiny, that the United States should control the entire continent from the Atlantic to Pacific Oceans, became possible with the Louisiana Purchase, according to Sofka."If you bought Manifest Destiny, it seemed to work just because of the enormous acreage involved and it seemed to give validation to that idea that the United States ought to control the continent," he said. read more