 Believing that immediate union of all the colonies was impossible, in 1864, he proposed a Maritime Union.However, representatives of the Province of Canada asked to be allowed to attend the meeting in Charlottetown scheduled to discuss Maritime Union in order to present a proposal for a wider union, and the Charlottetown Conference thus became the first of the three conferences that secured Canadian Confederation.Tupper also represented Nova Scotia at the other two conferences, the Quebec Conference (1864) and the London Conference of 1866.