John Amos Comenius (March 28, 1592 – November 15, 1670) was a Czech teacher, scientist, educator, and writer. He was a Unity of the Brethren/Moravian Protestant bishop, a religious refugee, and one of the earliest champions of universal education, a concept eventually set forth in his book Didactica Magna. Comenius became known as the teacher of nations.
In the midst of the Thirty Year's War, John Comenius was attempting to maintain the Unity of the Brethren after the church organization was banished from Bohemia and left a group of penniless refugees. Comenius was visited by his friend Deacon Jan Billek, who told Comenius about the time-displaced town of Grantville. When Comenius learned about the town's tolerance of all religions and their strong position against the Habsburgs, Comenius agreed to send Billek as an emissary to Grantville for aid and support.
In June of 1633, Comenius became the first rector of the newly-established University of Prague. Morris Roth picked him for the job because he was well-known as an advocate of educational reform and religious tolerance, and because the Brethren were a small church.