You probably take locking your house or car for granted. Not a second thought. If you ever wonder who invented those locks, chances are you think it's one of the big brands emblazoned on your key. But, hey, guess what? The mechanics for those locks was figured out more than two thousand years ago. Thanks to the Romans we have spring-loaded multiple tumbler locks, the classic key design we still use...and the padlock. Even the keyring dates to the Roman-era. And like us, they made their locks out of steel and bronze. So the next time you put your key in the door, take a moment to think someone else was doing exactly the same thing when Julius Caesar was the talk of the town. For more on Roman locks you can read 'A Body of Doubt' available from Amazon, just follow the links
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