England's southern colonies in North America developed a farm economy that could not survive without slave labor. Many slaves lived on large farms called plantations. These plantations produced important crops traded by the colony, crops such as cotton and tobacco.
And
Throughout the 17th and 18th centuries people were kidnapped from the continent of Africa, forced into slavery in the American colonies and exploited to work as indentured servants and labor in the production of crops such as tobacco and cotton.
Answer:
26 years
Explanation:
The National Road (also known as the Cumberland Road) was the federal government's first significant improved highway in the United States. The 620-mile (1,000-kilometer) road, built between 1811 and 1837, connected the Potomac and Ohio Rivers and served as a major transportation route for thousands of migrants heading west.