Thanks to Eli Whitney, by 1824 the U.S. had adopted the concept of interchangeable parts. He was most known for his advocacy of cotton gin and interchangeable parts, and thus helped the American economy immensely.
It was the Mayflower Compact that was written around 1620
Yes! The second president was John Adams.
<span>The answer usually given is containment of the USSR i think
</span>
More received a college education.
In 1921 Sadie Tanner Mossell Alexander was the first African-American to receive her PhD in economics. The first ever exhibition of the African-American community exhibiting their artistic talents was organised. Harmon Foundation was developed in 1921 to assist African-American artists.Thus in this manner, in the 1920's many African-Americans begin to make a mark in the business world as more and more of them were getting educated
Pls mark as brainliest
