The forgotten history of the screwdriver. This is original content based on research by The History Guy.
Images in the Public Domain are carefully selected and provide illustration. As images of actual events are sometimes not available, images of similar objects and events are used for illustration.
Most everyone owns at least one screwdriver. But Canadians likely own a screwdriver that few outside Canada would recognize. The differing fates of the Robertson and the Phillips head screwdrivers demonstrates that innovation is intimately tied to historical events.