Constantine and the Council of Nicaea plunges students into the theological debates confronting early Christian church leaders. Emperor Constantine has sanctioned Christianity as a legitimate religion within the Roman Empire but discovers that Christians do not agree on fundamental aspects of their beliefs. Some have resorted to violence, battling over which group has the correct theology. Constantine has invited all of the bishops of the church to attend a great church council to be held in Nicaea, hoping to settle these problems and others.

The first order of business is to...