http://agathe.gr/democracy/tyranny.html
Tyranny As happened in many other Greek states, a tyrant arose in Athens in the 6th century B.C. His name was Peisistratos, and after several unsuccessful attempts he seized power in 546 B.C. and ruled ... Large temples and altars were constructed for Zeus Olympios, Apollo Pythios, and the Twelve Gods. ... (Athenian Constitution 18.1) Drawing of an inscribed molding from the Altar of Apollo Pytbios. Drawing by William B. ... Literary sources tell us that the Altar of Apollo Pythios, like the Altar of the Twelve Gods, was built when Peisistratos the Younger was archon, in 522/1 B.C.