Answer:In 1794, U.S.-born inventor Eli Whitney (1765-1825) patented the cotton gin, a machine that revolutionized the production of cotton by greatly speeding up the process of removing seeds from cotton fiber. By the mid-19th century, cotton had become America's leading export.
Explanation:
Better working conditions in factories and agriculture
Fun facts.
If you find a machine which goes in a speed of 3×10^8 m/sec, you can see the past and future. You can even travel for longer distant objects like stars
Answer:
Sadly it was the labor slaves did for tabbaco, corn and etc
Explanation: