You may not have heard of Brok Windsor or Johnny Canuck, but back during the Second World War they were part of Canada’s Golden Age of comic books. Comics from the U.S. were deemed “non-essential” imports under wartime legislation and as such were not allowed into Canada. But kids were already hooked on superheroes, adventure comics, humour books and more. So a homegrown Canadian comic book industry was born — and it lasted until the end of the war.