In 1867, Canada began systematically drafting and implementing Treaty agreements with the original occupants of the land. This process moved across modern day Canada in response to settlement needs, the requirement for a national railway system, and natural resource exploration. In Saskatchewan, First Nations and the Crown entered into numbered Treaties between 1871 and 1906. While there were many reasons individual First Nations entered into treaty, they were, with few exceptions, concluded under the duress of disease, starvation, and the loss of traditional economies.