When I first read the thread opening a thing came to my mind
which just Rocano and Seancdaug have started to discuss:
Constantine had himself christened on his death-bed.
Whether he was in Christian faith then I do not know,
but I think that question does not concern subsequent history.
However, I am quite convinced that he was not of Christian faith
for the most time of his reign.
Why do I think so?
Well, there is no real turning point in his life (wrt his personal attitudes),
and not even a legend of how he changed his behavior.
Recall that he had managed persecution of Christians;
if he wished to be considered a Christian later on,
people would have expected more of him than changing shield ornaments.
Moreover, he let himself depict in Rome in the traditional sort
of rulers' monuments, with clear allusions to Jove.
And of course having one's wife and son butchered
and then send one's mother to the Holy Land to pour oil on troubled water
is not exactly what Christians may have expected from a new convert.
I think Christians did approve of the support from the throne,
but did not consider him as one of them,
until his baptism. It seems that Constantine as a believing Christian
is perception by later generations.
More accurate historical arguments welcome ;-)
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To make a long story short,
where has the POD gone?
"Constantine did not convert" would mean OTL in my (and Rocano's) opinion.
So I take the liberty of modifying it as follows:
WI Constantine stopped the persecution of Christians,
but did not patronize the Church;
in particular, did not attend Nicea, and did not have himself
christened?
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1. First family of possible TLs:
One of his successors may well have returned to persecution.
This yields another three options:
a) Constantine appears with delay, b) a no-Edict-of-Milan TL (with delay),
and c) all below TLs with delay.
Note that delay may well change a lot of things,
as the peoples inside and beyond Roman borders may develop
according to the OTL. But I did not think a lot about that.
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To understand what happened if Constantine had not intervened
with the establishment of the Church, we should first ask,
why did he intervene?
The TL will much depend on what we think were the main reasons.
In my opinion, there are two main aspects:
- Christianity must have been already wide-spread,
well into influential cicles of Roman society.
Otherwise Constantine and Licinius would not have stopped
the persecution. No doubt Christians constituted a minority,
by in important areas, like the city of Rome and in some Greek cities,
they must have amounted to more than 5%.
I cannot see how they could have made persecution spurious.
Of course, this goes with the fact that Christians were stubborn,
and many stuck to their beliefs in spite of discrimination.
On the other hand:
- Christianity was quite new, and still developping.
Hence Constantine saw a chance (he was right)
to influence this process and use the Church
as a tool to stabilize his power.
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2. Concentrating on the last point,
without Constantine perhaps Nicea would have ended
without result.
This might prove a test case:
Christian communities recognize that they do not agree on many
behalfs. Consequence: Not necessarily schisms,
but different opinions in different communities for almost
all relevant questions.
I do however expect that that communities would hold together
more than in OTL after 1054.
Of course, Church would not adopt so much of a hierarchy as
it did in OTL. But we should not underrate the links which
already existed among Christians.
For instance, in disagreement with Seancdaug's posting,
the New Testament had already develloped to pretty much the
current shape. The most probable non-common alternate NT
would be the West going without the Revelation and the East without
the Epistle to the Hebrews. Does that change so much?
Not politically, and certainly not in the short run, I think.
Moreover, a predominant position of the Bishop of Rome had
already developped, though only with marginal influence compared
to later popes. Some historicians even claim that higher authority
of Rome was already acknowledged around 100 AD, taking the Epistle
of Clemens as evidence.
Even if they overdo it a bit and even if the bishop of Rome
would not be able to impose the standards of his community
to the rest of the world, his position would be the most prestigious
in Christianity.
But on the other hand, the grave of Peter is certainly not enough
to maintain that situation if Rome would cease to be the most significant place.
In a TL where a metropolitan centre different from Rome comes about
that functions as a meeting point for people form many different regions,
perhaps the centre of the Christian world would have migrated there, too.
But as many before have posted, I agree:
The typical secular privileges of the Church would not be thinkable of.
There would be no legend of St. Sylvester, no alleged Donation of Constantine,
no Papal State, no great role model for the medieval kings.
Unless there were another Constantine, more similar to that of OTL to come.
=========================
Let us turn the Constantine's first motivation:
He tried to tame Christians.
If he had not supported them, their distance to the Roman state
would have enabled them to continue kvetching about earthly power
in general and the emperor in particular.
This is what also happened later on in OTL and helped to disintegrate
the Western Empire. I think this is the central point in Constantine's
calculation: He successfully prevented Christians to undermine his
authority.
This takes us to another interesting ATL:
WI Constantine's successor's would have kept to his course,
without cancelling Christian privileges,
but still appearing traditionally Roman to the Senate elite in Rome?
I think that Constantine's tying the Church to the empire _plus_
his successors becoming Christians without any reservations
has accelerated the fall of West Rome.
If I am wrong, then perhaps the destructive role of the Church
is due the distrust to power which Apostata has reinflamed.
I am keen on reading more details from you;
and to cook some up myself!
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@rcduggan: What does ARR stand for?