What is the origin of the idiom "there is safety in numbers" and when to use it?

The idiom "there is safety in numbers" is an English proverb that dates back to at least the 16th century. Its exact origin is unclear, but it has been used and passed down through generations as a piece of common wisdom. The concept behind the phrase is likely rooted in the observation that being part of a larger group can provide protection against potential threats or dangers. It reflects the understanding that individuals are less likely to be targeted or harmed when they are surrounded by others.