It sounds like you might have a list to choose from, but there is nothing here. Is there more to the question? :)
Answer:
B. BCE and AD
Explanation:
"Before Common Era" or Before Christ was born
"Anno Domini" or After Christ was born
The Roman empire was well organized with good roads & active trade, so the new religion could spread easily. Constantine was a sun worshipper who feigned Christianity so he could take control and throw out it's one and only goal
Answer:
From the beginning, then, the building of the transcontinental railroad was set up in terms of a competition between the two companies. In the West, the Central Pacific would be dominated by the “Big Four”–<u>Charles Crocker, Leland Stanford, Collis Huntington </u>and<u> Mark Hopkins.</u>
Answer:
Great Britain had the most colonial territory.