Constantine linked the Christian God with the sun.

Evidence

It is highly likely that, initially at any rate, he saw a very close link between the Christian God and Apollo and Sol Invictus. — Stephen Kershaw, A Brief History of the Roman Empire, 1542

Categorization

• corroborated: 2 independent passages support this claim — Stephen Kershaw, A Brief History of the Roman Empire, 1542
• XREF: connects to: Zeitgeist claims Christianity recycles Egyptian mythology as astrological myth — Michael Barkun, A Culture of Conspiracy: Apocalyptic…, 856; Constantine’s victory was the first Christian symbolism endorsing military power. — Andrew L. Whitehead, American Idolatry, 271