although Paul revere was caught by the british why did they not take him captive? what did they do to him?

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:

that would be the steamboat because none of the other things are forms of transportation

im pretty sue the answer is b code of hammurabi