Dedication of the Lateran Basilica November 9, 2015 / formafidei / Leave a comment The baldacchino, in Saint John Lateran in Rome. Nov. 2014. Saint John Lateran in Rome. Taken Nov. 2014. Why have a Feast for this day? A lovely post from the indispensable VultusChristi More history on Saint John Lateran, from the Catholic Encyclopedia.