What, according to historians, caused 160 accusations of witchcraft in Massachusetts and Connecticut between 1647 and 1692?

The answer is:  Social insecurity wrought by colonial expansion

Explanation:

There was many people that looked at woman strangely and this whole executions were claimed to be fake at the end.  There was a lot of innocent people that were killed because they were thought to be witches.  

i honesty don't know, good luck tho dawg