A dodgy question ... which I only revisit because Rowan Williams (for whom, to the surprise of many of my friends, I still retain a very friendly respect), in effect, raised it recently. These were his words:
"The Anglican Church no longer shows so clearly the same combination of rootedness in the early Christian tradition and unfussy, prayerful pragmatism".
This is is very much the conclusion to which Gary Bennett came in his Preface to the 1987 Crockfords (for which the Great and the Good, the Liberal Men of Mercy, hounded him to suicide). He wrote of the demise of "the usual Anglican assumptions about the authority of Scripture and the normative character of patristic usage".
Yes, I know that many of you, with justice, might assign the demise of the Ecclesia Anglicana to the year 1559. But you know what I mean ... or, if you don't, don't bother further with this.
For what it's worth, I think I might pick on the date 2008, the year Henry Chadwick died. Readers who know anything about him will understand why I do this.