The Concordia Convention was a meeting of delegates from the Liberal Parties of the Southern Confederation, the Northern Confederation, Indiana, and Quebec that was held in Concordia, North Carolina in July and August 1841.
The impetus for the convention was the series of crises that occurred in the four confederations in the wake of the Panic of 1836. The delegates, led by General Winfield Scott of Indiana, Governor Henry Gilpin of the N.C., and Governor John Calhoun of the S.C., agreed that recent events demonstrated the need for a closer union of the confederations of the Confederation of North America, including a postal union, a common currency, a unified banking system, and a unified military. In August, the delegates issued a call for the Britannic Design to be amended to produce a more centralized nation. The Concordia Convention's resolves, along with those of the Conservative Party's convention in Brant, Indiana, led to the meeting of the Burgoyne Conference of 1842, and the drafting of the Second Britannic Design.
Sobel's source for the Concordia Convention is Alex Prentiss's A More Perfect Union: The Concordia Accords (New York, 1967).