that they had received direct revelation from the Spirit, and rationalists or anti-Trinitarians, who rebelled against traditional Christian doctrine, like Michael Servetus." Those of the polygenesis viewpoint use Anabaptist to define the larger movement, and include the inspirationists and rationalists as true Anabaptists. James M. Stayer used the term Anabaptist for those who rebaptized persons already "baptized" in infancy. Walter Klaassen was perhaps the first Mennonite scholar to define Anabaptists that way in his 1960 Oxford dissertation. This represents a rejection of the previous standard held by Mennonite scholars such as Bender and Friedmann. Another method of categorization acknowledges regional variations, such as Swiss Brethren (Grebel, Manz), Dutch and Frisian Anabaptism (Menno Simons, Dirk Philips), and South German Anabaptism (Hübmaier, Marpeck). Historians and sociologists have made further distinctions between radical Anabaptists, who were prepared to use violence in their attempts to build a New Jerusalem, and their pacifist brethren, later broadly known as Mennonites. Radical Anabaptist groups included the Münsterites, who occupied and held the German city of Münster in 1534–1535, and the Batenburgers, who persisted in various guises as late as the 1570s. Spirituality Charismatic manifestations Within the inspirationist wing of the Anabaptist movement, it was not unusual for charismatic manifestations to appear, such as dancing, falling under the power of the Holy Spirit, "prophetic processions" (at Zurich in 1525, at Munster in 1534 and at Amsterdam in 1535), and speaking in tongues. In Germany some Anabaptists, "excited by mass hypnosis, experienced healings, glossolalia, contortions and other manifestations of a camp-meeting revival". The Anabaptist congregations that later developed into the Mennonite and Hutterite churches tended not to promote these manifestations, but did not totally reject the miraculous. Pilgram Marpeck, for example, wrote against the exclusion of miracles: "Nor does Scripture assert this exclusion ... God has a free hand even in these last days." Referring to some who had been raised from the dead, he wrote: "Many of them have remained constant, enduring tortures inflicted by sword, rope, fire and water and suffering terrible, tyrannical, unheard-of deaths and martyrdoms, all of which they could easily have avoided by recantation. Moreover one also marvels when he sees how the faithful God (Who, after all, overflows with goodness) raises from the dead several such brothers and sisters of Christ after they were hanged, drowned, or killed in other ways. Even today, they are found alive and we can hear their own