Identify and explain the significance of each item below.

tetrarchy (p. 188)

diocese (p. 188)

Arianism (p. 191)

heresy (p. 191)

apostolic succession (p. 193)

Petrine Doctrine (p. 194)

regular clergy (p. 194)

secular clergy (p. 195)

sacraments (p. 197)

runic alphabet (p. 198)

comitatus (p. 200)

wergeld (p. 201)

relics (p. 211)

Orthodox Church (p. 215)