Will give a addtional 30 points to whoever answer first good luck Why would British colonists of the 19th century promote the idea that Great Zimbabwe was built by another culture--not Africans? How has this idea been corrected?

ive had ppl say that before and never do it

Explanation:

d. dr. francis collins

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: