Answer :
In Canada, on June 14, 1872, Trade union act was repealed the British Trade union laws, thus after that, the worker's strike was celebrated by the workers every year to show their solidarity.
According to one of the theories of Labor day, it is considered that, Labor day celebration was an idea of U.S. President Peter McGuire, when he saw parades celebrating labor day, during his visit to Toronto, thus we can say,
it was celebrated first in Canada and then inspired U.S. to announce a day celebrating Labor.
In the year 1894, the U.S. congress, is said to be, passed a bill which had provided recognition to the Labor day, which is used to be celebrated on every first Monday of September, officially.
Now, the Labor day in Canada is also celebrated on the same day as, first Monday of every September, like United states, but the evidences and researchers had shown that, Canada had marked the first celebration of Labor day before U.S.
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