Complex sentence: Canada's first private kindergarten was opened by the Wesleyan Methodist Church in Charlottetown, Prince Edward Island, in 1870 and by the end of the decade, they were common in large Canadian towns and cities.
Split into simpler sentences: Canada's first private kindergarten was opened by the Wesleyan Methodist Church in Charlottetown, Prince Edward Island, in 1870. By the end of the decade, they were common in large Canadian towns and cities.