fe.settings:getUserBoardSettings - non array given[4chon] - Endchan Magrathea
> Scientists discover what caused the Roman Empire to collapse 1,500 years ago

They discovered that the Romans miscalculated their Persian opponents which caused their downward spiral, leaving them weak and allowing Islam to rise in a manner that essentially wiped out the once-powerful civilization.

https://www.dailymail.co.uk/sciencetech/article-14087827/Roman-Empire-collapse-discovered.html