1816 John melish map question 2

How does this relate to manifest destiny?

Manifest Destiny, a phrase coined in 1845, is the idea that the United States is destined—by God, its advocates believed—to expand its dominion and spread democracy and capitalism across the entire North American continent.

Explanation:

The map shows at a glance the whole extent of the United States territory from sea to sea. In tracing the probable expansion of the human race from east to west, the mind finds an agreeable resting place on its western limits. ... It also adds to the beauty and symmetry of the map.

either wyoming or idaho

explanation:

may i ask what challenges?