Liverpool has begin a viking hamlet before the town has founded. The reason why we know because their are many of grave places have viking name on it and the biggest settlement of viking in Liverpool is West Derby.
What King John done?
King John is the king of England from 1199-1216 in the early century. He the man who found Liverpool port in 1207 and use it to send supplier to Irish Sea. Castle Street nowadays is one of the area that King John use to build his castle to protect his new port and the highest point of the city.
The view from Liverpool Port
book about the middle age in Liverpool