Explanation:
Japan's isolation came to an end in 1853 when Commodore Matthew Perry of the United States Navy, commanding a squadron of two steam ships and two sailing vessels, sailed into Tokyo harbor. He sought to force Japan to end their isolation and open their ports to trade with U.S merchant ships
The transcontinential railroad brought more money to the railroad companies because more people had access to the railroads, therefor using them more, and money was brought in. Not 100% sure, but that is my guess
The event that resulted in the creation of NASA would be when the Russian's first launched the Sputnik into space and JFK told America that we will be the first on the moon and that we will not let the Russian's win this race. Which hence why we called it the space race.
