Booker T and Dubois both wanted equality for African Americans during the Civil Rights Movement, although Booker T was more passive in the movement saying they should let it take its time, while Dubois believed that they should aggressively demand rights for them.
Any time cultures interact (example: immigration) they impact each other and cause culture change. Ideas and cultural concepts are constantly spreading and moving and changing.
The golden age of radio began in the early 1920s and lasted until the 1970s. Hope this helps
