Increased threats from invaders forced emperor aurelian to take which of the following steps?
a) he moved the capital to constantinople, which was harder to attack.

b) he raised taxes so that he could hire more troops for the army.

c) he had a wall constructed to protect the city of rome from invasion.

d) he divided the empire in half so that it would be easier to defend.

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He divided the empire in half so that it would be easier to defend.

the answer is a. since they were a huge producer of cotton and wanted the most money for it.

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: