TIL There was a widespread belief that Alexander the Great built a series of fortifications in the Caucuses called “The Gates of Alexander” to keep steppe tribes like the Scythians from raiding across them.

https://en.wikipedia.org/wiki/Gates_of_Alexander
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1g8mq5a/til_there_was_a_widespread_belief_that_alexander/