Mennonites are of the Christian church and their history can be traced to the Protestant Reformation of the 1500’s in Europe. They are also known under the name of Anabaptists, meaning “re-baptizers,” due to their belief of only baptizing adults upon confession of faith. The name Mennonite was created from the name of Menno Simons, a Dutch Roman Catholic priest who joined the Anabaptists and helped lead them in Europe by the mid-16th century. There are approximately 1.7 million Mennonites around the globe. Although their communities originally started in the European nations of the Netherlands, Germany, Switzerland, and the Alsace-Lorraine region of modern day France, Mennonites today are located in many parts of the world such as the United States (especially in the states of Ohio, Pennsylvania, Indiana, and Kansas), Canada, the Democratic Republic of the Congo, Tanzania, Zimbabwe, Kenya, Nigeria, Ethiopia, India, Indonesia, Paraguay, Puerto Rico, Mexico, and Bolivia. Similar to the conservative and progressive ranges of the faith groups of Judaism, Mennonites can be found in conservative groups such as the Wenger Mennonites, who use black carriages with horses in Lancaster, Pennsylvania to the liberal and progressive college students walking the campus pathways of the Mennonite colleges such as Goshen College, Bethel College (Kansas), Eastern Mennonite University, and also at Harvard and M.I.T. Pacifism is one of the cornerstones of the Mennonite faith, prompting many young Mennonites to elect service to the church rather than military service. The Mennonite church emphasizes service to others as an important way of expressing one's faith. A disproportionately large number of Mennonites spend part of their lives working as missionaries or volunteers helping those in need, nationally or internationally, through agencies such as Mennonite Mission Network or Mennonite Central Committee.