6. Today, this continent is bordered by the Atlantic Ocean on the east and the Pacific
Ocean on the west.

The Americas.

Explanation:

The continent that is delimited to the east by the Atlantic Ocean and to the west by the Pacific Ocean is the American continent, that is, the set of territories located in North America, Central America, the Caribbean and South America. Thus, the American continent includes from Alaska, Canada and Greenland in the extreme north (the Arctic region) to Argentina and Chile in the south, near Antarctica.

the only other powers were germany russia and uk and they were too busy fighting each other wearing each other down   that the us was becoming strong and they were becoming weaker

i think the reason that they immagrated was to find freedom of religion