What is histroy?
from where come​

History started when people started writing

Explanation:

The short version is that the term history has evolved from an ancient Greek verb that means “to know,” says the Oxford English Dictionary's Philip Durkin. The Greek word historia originally meant inquiry, the act of seeking knowledge, as well as the knowledge that results from inquiry.

Explanation:

Your welcome<3

Got it from time.com

the united states broke it's neutrality was the constant german sinking of trading vessels resulting in the loss of lives, one example would be the lusitania.