People migrate to the new lands, populate, build cities, created businesses, trade, settle.
<span>Some of the people who live in the Sahara raise crops on irrigated land in an oasis. Others tend flocks of goats, sheep, and camels. These herders find grass for the stock along the desert's fringe or where sudden rains have fallen. They live in tents so they can move easily as soon as the grass is eaten in one place.</span>
Northeastern United States is the region next to the Great Lakes (for example: lake Ontario) - and in fact they form the border between the Northeastern United States and Canada. (Perhaps" Great Lake region" fits better the gap - the gap needs a phrase in singular form).
