The consecration of the Church of the Three Kings on July 23, 1340 is considered the origin of the Main Festival. From this, Main fishermen and boatmen derived their fishermen's festival, with which they paid homage to "their river and its gifts". They celebrated with "ox on the spit", let wine flow from the fountain of justice and enjoyed passion plays performed by schoolchildren in "Himmelreich huts", goose plucking, duck catching by the fishermen, firecracker shooting, fireworks, and colorful processions in fours and sixes along the banks of the Main.
