Hydra’s roots lay in the Red Skull’s personal Nazi troops in World War II where they coined their slogan. It was after the war that they really spread their wings as an international terrorist organization with aims of world domination. Since the 60’s they crop up wherever it’s most inconvenient for everyone.
References: [wikipedia.org: Hydra (comics) ]
[Dr. Strange in the Multiverse of Madness] [2022] [ref to; ]
[org]
Metahuman Database 