Given this paragraph about the Northamptonshire County Cricket Club, can you list down some points that can be inferred about the County Championship?

Based on this paragraph, it seems like the Country Championship refers to some form of organized competition between cricket teams belonging to different counties. The Championship has been organized for at least four times given that the Northamptonshire County Cricket Club finished as runners-up in it for four times. It also seems like the Championship was split into two divisions at some point.