Since the north is typically cold, growing cotton there would kill it. it wont survive in winter in places north of the mason-dixon line
This wall helped a little keep small invaders out because it provided a wall that was difficult to get over. But it wasn’t good enough to stop big invasions because a large amount of people would overwhelm the guards.
The answer is Meriwether Lewis. The SS Meriwether Lewis was a Liberty ship built in the United States during World War II. She was named after Meriwether Lewis, an American explorer who, along with William Clark, led the Corps of Discovery which explored the American West.
