Columbia subject headings:
Church history--Primitive and early church, ca. 30-600.
Cynics (Greek philosophy)
Q hypothesis (Synoptics criticism)
Harvard subject headings:
Christianity--Origin
Cynics (Greek philosophy)
Princeton subject headings:
Cynics (Greek philosophy)--History.
Philosophy and religion--History.
Theology, Doctrinal--History--Early church, ca. 30-600.