How did southerners attempt to undermine the rights of african-americans

the american revolution was by the middle and upper class, and the french was by the lower and middle class.

the answer is b for brother

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: