(1225) Born at Roccasecca (family castle), in Southern Italy
(1230) becomes a Benedictine Oblate at Monte Cassino. Here Thomas was educated
(1239) After Frederick II's excommunication, Thomas was removed from the abbey by his parents and sent to the University of Naples. It was probably here that St. Thomas first began his reading of Aristotle and the Arabic commentators of him.
(1243/44) Thomas joins the Dominicans in Naples. His family holds him captive for a year.
(1245) Sent to the house of the order (St. Jacques) in Paris
(1248-1252) Studies in new Studium Generale, at Cologne, under Albert the Great. Thomas was Albert's assistant
(1250) Ordained a priest
(1252-59) University of Paris. "First Parisian period." Goes to study theology.
(1256) Receives licentia docendi. Began his teaching career by commenting on Scripture and then commented on the Sentences of Peter Lombard.
(1257) Became a master of Theology on August 15.
(1259-68) In Italy. "Preacher General." Taught theology in a series of Dominican houses in various parts of Italy
(1261) At Orvieto; Met William of Moerbekebegan commentaries on Aristotle's works using William's new translations
(1265) Head of studies in Rome at Santa Sabina; Begins Summa Theologiae
(1269-72) "Second Paris period. Occupied one of the Dominican chairs of theology. Completes Part two of the Summa
(1272-74) Italy. Regent of Studies in Naples. Writes first 90 questions of part three, Summa
(1274) Dies March 7, at Fossanova, enroute to Council of Lyon
1277 Thomas is condemned at Paris
1323 Thomas canonized
1325 Paris condemnation revoked