Around 965 AD, a Danish king named Harald Bluetooth (yes, that’s where your earpiece gets its name) decided Christianity was good for business. He’d seen how Christian rulers had all those fancy stone churches and united kingdoms. “I want that,” he probably said, pointing at a cathedral.
Harald converted and claimed to have “made the Danes Christian.” But let’s be real—he made himself Christian and hoped everyone would follow. Spoiler: many didn’t, but the royal seal of approval made it trendy. Suddenly, being a Christian Viking was like having a smartphone in the 9th century—everyone wanted one.
Harald Bluetooth The King Who Christianized the Vikings
The Norwegian Slow Burn
Over in Norway, King Olaf Tryggvason took a harder line. He’d been a Viking raider himself, then converted in England. When he returned home, he didn’t just ask nicely—he sent missionaries and, uh, encouraged conversion with a sword. “Baptism or death!” was basically his campaign slogan.
It worked, but not without resistance. One saga says Olaf even threatened to burn a pagan temple unless the priest could perform a miracle. The priest invited a fire-breathing dragon (allegedly) to prove his point. I’m not saying it happened, but it’s a great story for the next Viking party.