A because the industrial revolution led to businesses expanding and creating more job openings in different areas
We entered the war on April 6, 1917. By the end of the war, 2 million American soldiers entered the war.
Hope that helps.
Answer:
After the fall of Rome wasn't the actual fall of Rome but actually only the western part of rome has fallen I believe the key of keeping their language and history on scriptures and texts, even though we know little about certain topics such as what's Greek fire made of the eastern empires still lived afterwards wtih some valuable reelects, and acient texts remained of the Rome's past events and etc