The Feast of Saints Peter and Paul, or the Solemnity of Saints Peter and Paul, is a liturgical feast in honour of the martyrdom in Rome of the apostles Saint Peter and Saint Paul, which is observed on 29 June. The celebration is of ancient origin, the date selected being the anniversary either of their death or of the translation of their relics.[1]
In the Roman Catholic calendar of saints, it is celebrated as a solemnity. In the General Roman Calendar of 1962, it is a first-class feast. It is a holy day of obligation in the universal Church.
(... from Wikipedia on 2012-04-17 15:02:48)