Answer: Alexander The Great.
The phonograph and radio were two inventions that helped jazz reach even remote locations in the United States.
Phonograph technology had been invented in the late 1800s, and sales of disc records began to be common in the early 1900s.
Radio had been invented by Gabriel Marconi in the 1890s, and by the 1920s was becoming a commercially dominant force. Record sales were impacted by the improved radio technology, but the major record labels were able to continue to sell well until the Depression hit.
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
