What factors sparked the prosperity of the 1920s?

In the Roaring Twenties, a surging economy created an era of mass consumerism, as Jazz-Age flappers flouted Prohibition laws and the Harlem Renaissance redefined arts and culture

the  wilmot proviso  was designed to eliminate  slavery  within the  landacquired as a result of the mexican war (1846-48). fearing the addition of a pro-slave territory, pennsylvania congressman david  wilmot proposedhis amendment to the bill.

the passage of a strict fugitive slave law