When Calls the Heart is a television drama series set in the early 1900s. The show is based on Janette Okes book of the same name from her Canadian West series and follows the story of Elizabeth Thatcher, a cultured young woman from the city who moves to a small mining town on the Canadian frontier to teach the children there. The series began airing on the Hallmark Channel in the United States on January 11, 2014, and in Canada on April 16, 2014. The show has been renewed for multiple seasons, with season 10 set to premiere on July 30, 2023. While the exact year is not explicitly stated, it is generally accepted that the show takes place in the early 1900s, with the first season being set in 1910.