Answer: It is considered by some that the screw thread was invented in about 400BC by Archytas of Tarentum (428 BC - 350 BC). Archytas is sometimes called the founder of mechanics and was a contemporary of Plato.
Explanation:
Americans fear of communist attack
Truman’s dislike of Stalin
The main way in which minorities were at a disadvantage during the Great Depression is that "<span>c. They had limited skills compared to other workers." since they lacked education. </span>