True or false? The fall of the Roman Empire around 500 AD or CE is
considered the beginning of the Middle Ages.

its true

Explanation:

the Middle Ages or Medieval Period lasted from the 5th to the late 15th century. It began with the fall of the Western Roman Empire and merged into the ... The most commonly given starting point for the Middle Ages is around 500, so yeah it's true.

i think its the outcome of people's preferences.

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: