<P> The active history of broadcasting in Canada begins in 1921 , as Canadians were swept up in the radio craze and built radio sets to listen to American stations . </P>
<P> The active history of broadcasting in Canada begins in 1921 , as Canadians were swept up in the radio craze and built radio sets to listen to American stations . </P>
when did the radio become popular in canada
when did the radio become popular in canada
1921
1921