Why was New York impossible to defend during revolutionary war

Controlling the Hudson River was vital to the war effort on both sides. The British held New York City and its port for most of the war. The Continental Army was able to hold and control most of the Hudson River allowing them access to the entire Hudson Valley.

Explanation:

(source :google)

Leather and pig's bladder

Explanation:

The most common material ball's were made out of during this time were these strange materials. They were long lasting and commonly used to play a version of football.