What did the HUAC investigate in the 1950s?

HUAC was created in 1938 to investigate alleged disloyalty and rebel activities on the part of private citizens, public employees and organizations suspected of having Communist ties.

Explanation:

The House Un-American Activities Committee (HUAC) was created to investigate alleged disloyalty and subversive activities on the part of private citizens, public employees, and those organizations suspected of having Communist ties.

it affected it because the kingdoms (with trade) slowly got richer and richer.