Who were the Assassin's in reality? And were they truly that lethal, as portrayed in modern pop culture?

by pizzagrowsontrees

Hi fellow history heads. Long time lurker here. (M 28)

I don't know why, but I've been fascinated by the Assassin's since I was a little boy. Would love to get your insight into who were they in reality, and how important were they in that time period?

J-Force

You may find this answer I wrote about the deservedness of their reputation rather useful.