Why give gifts at Christmas?

"Understand. Before Christmas was the Roman Saturnalia, upon which Christmas is founded. Tertullian; considered an early Catholic church father, wrote that during the Saturnalia, presents were exchanged and “every pomp of the devil is frequented” (On Idolatry, circa 200 – 206 A.D.)."
- Why Satan loves Christmas

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Christmas is About Giving -- Says Who?