Which englishman tried to establish a colony on roanoke island?

The correct answer is Sir Walter Raleigh

Raleigh set sail to America with his half-brother Sir Humphrey Gilbert in 1578. This expedition is believed to have inspired his plan to found a colony in North America. In 1585, he sponsored the first English colony in America on Roanoke Island which is present day North Carolina

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:

rosevelt. 1973. "slaves everywhere"