Calgary is the biggest city in the Province of Alberta, Canada. It is located in the south of the province, around 80 km east of the front ranges of the Canadian Rockies. Before Calgary was established, the region was occupied by the Pre-Clovis people 11,000 years ago. Originally named Fort Brisebois, it was renamed Fort Calgary by Colonel James Macleod in 1876 afte the word, "Calgary," which is on the Isle of Mull. The arrival of Canadian Pacific Railway in 1883 together with the construction of a rail station prompted it to develop into an influential agricultural and commercial centre. In 1884, Calgary was incorporated as a town and elected its first mayor, George Murdoch.