Pope Sixtus IV, a Franciscan, brought the March 19 feast of Saint Joseph into the calendar at Rome around 1479, after Jean Gerson and Bernardine of Siena had pressed for an official feast and the Franciscan Observants fixed the date at Salamanca in 1461. Scholarship is explicit that the act covered Rome rather than the whole Church, and that missals and breviaries elsewhere began carrying the feast by copying Roman usage after 1480. Gregory XV made the day binding everywhere in 1621. Vatican News dates the approval to 1480 rather than 1479, and the 1910 Catholic Encyclopedia gives no year at all.
Two men argue for a feast
The cult spread through the fifteenth century under Bernardine of Siena and, above all, Jean Gerson, Chancellor of Notre Dame in Paris, who pressed for an official feast. The Franciscan Observants moved first, fixing the date at Salamanca in 1461.


