What happened 1508 AD

A customary day for the celebration of fatherhood in Catholic Europe is known to date back to at least 1508. It is observed on March 19, as the feast day of Saint Joseph, who is referred to as the fatherly Nutritor Domini ("Nourisher of the Lord") in Catholicism and "the putative father of Jesus" in southern European tradition. This celebration was brought to the Americas by the Spanish and Portuguese. The Catholic Church actively supported the custom of a celebration of fatherhood on St. Joseph's Day from either the last years of the 14th century or from the early 15th century, apparently on the initiative of the Franciscans. In the Coptic Church, the celebration of fatherhood is also observed on St Joseph's Day, but the Copts observe this celebration on July 20. This Coptic celebration may date back to the fifth century.

By 1508, Leonardo was back in Milan, living in his own house in Porta Orientale in the parish of Santa Babila.

In 1508, French poet Eloy d'Amerval referred to a poisson d'avril (April fool, literally "fish of April"), possibly the first reference to the celebration in France.

A covenant against Venice was signed by the League of the Kingdom.