A number of scholars (e.g. Harold S. Bender, William Estep, Robert Friedmann) consider the Anabaptist movement to have developed from the Swiss Brethren movement of Conrad Grebel, Felix Manz, George Blaurock, et al. They generally held that Anabaptism had its origins in Zürich, and that the Anabaptism of the Swiss Brethren was transmitted to southern Germany, Austria, the Netherlands, and northern Germany, where it developed into its various branches. The monogenesis theory usually rejects the Münsterites and other radicals from the category of true Anabaptists. In the monogenesis view the time of origin is January 21, 1525, when Conrad Grebel baptized George Blaurock, and Blaurock in turn baptized several others immediately. These baptisms were the first "re-baptisms" known in the movement. This continues to be the most widely accepted date posited for the establishment of Anabaptism.