 This was introduced to Britain, whose clerics at some point modified it to use the Julian calendar's original equinox on 25 March instead of the Nicaean equinox, which had already drifted to 21 March.This calendar was conserved by the Britons and Irish while the Romans and French began to use the Victorian cycle of 532 years.The Romans (but not the French) then adopted the still-better work of Dionysius in 525, which brought them into harmony with the Church of Alexandria.