Hat tip to Tom Fitzpatrick for the heads up about the change of date. This year, The Annunciation is celebrated on Monday since March 25 falls on a Sunday.
"Slavery ended in medieval Europe only because the church extended its sacraments to all slaves and then managed to impose a ban on the enslavement of Christians (and of Jews). Within the context of medieval Europe, that prohibition was effectively a rule of universal abolition. "— Rodney Stark
