The project D. Building the Transcontinental I believe is the one that led to the creation of a system of time zones across America
Hello there.
<span>Which of these is true of the century following the Pax Romana?
</span><span>C) The Roman military kept the empire's borders secure.</span>
Answer: A, and D
Explanation:
D is definitely correct,
But A might not be (but it’s likely)
Answer:
Centers of trade which make it the main feature of civilization
Explanation:
