Analysis of information sources in references of the Wikipedia article "Blue law" in English language version.
However, an amendment was made that left is enforcement to the discretion of the provinces, so that it remained a dead letter in mostly French Quebec. A Catholic Sunday League was formed in 1923 to combat this laxity and promote sabbatarian restrictions in that province--especially against movie theaters.
In 1922, inspired by a pastoral letter decrying the lax observance of Sunday as a day of rest, the Ligue du Dimanche (Sunday League) formed. For fourteen years the League agitated for Sabbatarian legislation, particularly against cinemas
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