To strengthen protections of the franchise, in 1965, congress passed the act, which effectively ended literacy tests and other strategies that had discriminated against african americans at the polls and gave the justice department the authority to supervise voter registration in locales that had discriminated.

Voting Rights.

Explanation:

As the exercise describes, the Voting Rights Act of 1965 ended literacy tests and other strategies that had discriminated against African Americants at the polls. It is a landmark piece of federal legislation that prohibits racial discrimination. It was passes by the Congress and signed into law by the USA former President Lyndon B. It gave the Justice Department the authority to supervise voter registration that had discriminated, just as the exercise says.

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )