In the 1920s, the industry replaced the railroad industry as the country's more vital and important industry

The Automobile

Explanation:

Automobile industry superseded the railroad industry and changed the U.S. economy in the 1920's. Not only did it change American lives in many ways, it also led to increased growth in other industries such as oil, glass and rubber.

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation:

d. hip hop

it was originated in the 70s while the harlem renaissance occured in the 1920s