<span>The United States had troops in Saudi Arabia</span>
The Cotton Gin increased the demand for slavery
Answer:
Developed in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid between stations.
Explanation:
The answer to this is"<span>Southern Christian Leadership Conference"</span>
I guess its revolution. example, earth revolves around the sun.
