retreat of the last continental ice sheet. In 1850, local Ojibwe chiefs entered into an agreement with the British Crown to share a large tract of land, including what is now Sudbury, as part of the Robinson Huron Treaty. In exchange the Crown pledged to pay an annuity to First Nations people, which was originally set at $1.60 per treaty member and increased incrementally; its last increase was in 1874, leaving it fixed at $4. French Jesuits were the first to establish a European settlement when they set up a mission called Sainte-Anne-des-Pins, just before the construction of the Canadian Pacific Railway in 1883. The Sainte-Anne-des-Pins church played a prominent role in the development of Franco-Ontarian culture in the region. Coincidentally St -Anne is the Patron Saint of Miners. During construction of the railway in 1883, blasting and excavation revealed high concentrations of nickel-copper ore at Murray Mine on the edge of the Sudbury Basin. This discovery brought the first waves of European settlers, who arrived not only to work at the mines, but also to build a service station for railway workers. Sudbury was incorporated as a town in 1893, and its first mayor was Joseph Étienne aka Stephen Fournier. The American inventor Thomas Edison visited the Sudbury area as a prospector in 1901. He is credited with the original discovery of the ore body at Falconbridge. Rich deposits of nickel sulphide ore were discovered in the Sudbury Basin geological formation. The construction of the railway allowed exploitation of these mineral resources and shipment of the commodities to markets and ports, as well as large-scale lumber extraction. Mining began to replace lumber as the primary industry as the area's transportation network was improved to include trams. These enabled workers to live in one community and work in another. Sudbury's economy was dominated by the mining industry for much of the 20th century. Two major mining companies were created: Inco in 1902 and Falconbridge in 1928. They became two of the city's major employers and two of the world's leading producers of nickel. Through the decades that followed, Sudbury's economy went through boom and bust cycles as world demand for nickel fluctuated. Demand was high during the First World War, when Sudbury-mined nickel was used extensively in the manufacturing of artillery in Sheffield, England. It bottomed out when the war ended and then rose again in the mid-1920s as peacetime