Blue origin is the answer I think
The purpose of the Sherman Antitrust Act was it prohibited any contract, trust, or conspiracy to a foreign trade.
Hope this helped!
Answer:
The Napoleonic War is your answer
Brown v. Board of Education was a landmark case in which it was finally proven that segregation in institutions of education was highly unconstitutional, so you could say that that is the greatest effect since it made other schools become open for everyone as well.