Another system was to date from the crucifixion of Jesus Christ, which as early as Hippolytus and Tertullian was believed to have occurred in the consulate of the Gemini (AD 29), which appears in some medieval manuscripts. Source: Internet
Hippolytus and Methodius of Olympus also mention or quote him. Source: Internet
Hippolytus found Callixtus's policy of extending forgiveness of sins to cover sexual transgressions shockingly lax and denounced him for allowing believers to regularize liaisons with their own slaves by recognizing them as valid marriages. Source: Internet
B117 (Hippolytus, i. 3.2) For Empedocles, all living things were on the same spiritual plane; plants and animals are links in a chain where humans are a link too. Source: Internet
Hippolytus, Refutation of all Heresies, i. 7; Cf. Aristotle, De Caelo, 294b13-21 Xenophanes of Colophon (c. 500 BC) thought that the Earth was flat, with its upper side touching the air, and the lower side extending without limit. Source: Internet
A Further Note on the Modernity of "Hippolytus" Robert Skloot. Source: Internet