For centuries, ancient African civilization was believed by many Europeans to be one that neither contributed to humanities' advancement nor was touched by it. However, historical and anthropological documentation has produced evidence that the continent of Africa provided such civilizations as
Egypt, Kush, and Aksum, and those in the Nile valley as well as empires like Ghana, Mall, and Songhal. What lasting effects resulted from these
misconceptions?

d

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:

people can see all information on a topic and believe it because of technology