That "Divine Retreat Centre" piece is being a bit naughty. "Christian faith was preached in Britain for the first time on the blessed shores of Kent by St. Augustine" is just not true. Christianity arrived on these shores during the Roman occupation, either quietly before Constantine or officially thereafter (see the chapel at Lullingstone Roman Villa, 4thC). Now it could be argued that this was the was the British, not the English. However even that claim is a little difficult. In Northumbria the Christian tradition remained alongside the incoming Anglo-Saxon paganism which, in part, explains the relative ease of Paulinus' conversion of the area compared to the Augustinian attempts in Kent and the south.
