https://en.wikipedia.org/wiki/Antipas_of_Pergamum
http://www.openculture.com/2013/11/brazen-bull.html
https://www.britannica.com/biography/Phalaris
https://en.wikipedia.org/wiki/Bibliotheca_historica
https://en.wikipedia.org/wiki/Brazen_bull
https://www.mnn.com/green-tech/research-innovations/photos/7-inventors-killed-by-their-inventions/perillos-of-athens
https://en.wikipedia.org/wiki/Phalaris
http://imaginaryinstruments.org/bull-of-phalaris/
https://en.wikipedia.org/wiki/Constantine_the_Great
http://www.catholic-saints.info/patron-saints/saint-eustace.htm
https://www.christianiconography.info/eustace.html
https://reginamag.com/saint-eustachius-wife-and-sons-martyrs/
https://allthatsinteresting.com/brazen-bull