7 Weird History Facts That Sound Fake But Are 100% TRUE

Cold War Spies Had a Secret Code: Their Shoelaces

Forget high-tech gadgets; sometimes the best secrets are hidden in plain sight. During the Cold War, the CIA taught its spies to communicate using their shoelaces! A secret manual detailed how to lace your shoes in specific, pre-arranged patterns to send signals or identify yourself to fellow agents. It was a simple, brilliant trick that anyone could use—as long as the KGB wasn’t staring at their feet.