Why was the american revolution also considered a civil war

The "Americans" weren't Americans yet, they were are a part of England. They were battling England to gain independence, so technically they're fighting their own country. The definition of civil war is a war between the same group, country, etc. so it counts as a civil war.

500 books can be produced by one man and a printing press within 5 months, while a copyist can only produce one in the same amount of time