How and why did american domestic and foreign policies change for 1890 to 1918

The expansion of the United States affected its foreign policy because America wanted to stay out of foreign affairs but were eventually forced into them. When America was trading with other countries their ships would bet attacked by African pirates causing Americans to have to take action against them.

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: