![The Hon. Sir Oliver Mowat by Robert Harris](/sites/default/files/styles/gallery_image_850_x_532/public/legacy/timeline_content/32.jpg?itok=rIrenPIZ)
1872
Following Edward Blake’s resignation, Oliver Mowat is sworn in as Ontario Premier. Along with his reputation as a lawyer and as a Father of Confederation, his many reforms would shape the province with programs such as worker’s compensation and children’s aid. He remains Ontario’s longest-serving Premier, in office for 24 years.