Who was Muhammad Ali ­

Muhammad Ali was a  former American  heavyweight champion boxer and one of the greatest sporting figures of the 20th century. A Olympic gold medalist and the first fighter to clam the heavyweight title three times,

Explanation:

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:

the puritans were a group of people who grew discontent in the church of england the common unity strengthened the community.