An area rich for archaeologists is Central/South America. More “lost” cities are discovered every decade. These societies left some writing on stones but not much on paper. They lost out in competition over time to white Europeans invaders. Europeans brought in their cultures and the religion that came with the culture. Much native religion and culture are buried in the sands of time.
Every new city discovered reveals evidence of amazing engineering and management. There were systems of farming, moving water to where it was needed and roads through the swampy area. To me, their apparent sophistication rivaled that at the time of any civilization in the world.
The “classic Mayan period” began in the 200’s CE. Constantine put Christianity in play in the 300’s by declaring it the Dictator’s own religion. During the following centuries, Christianity spread across Europe and Native societies in the Americas grew in size and prosperity. There was one difference, dryer climates lend themselves better for use of paper. The written word was a powerful weapon in standardizing a message and expanding influence. That is was written on paper did not make it better.
Columbus arrived in 1492, the Spanish invaded the lands to the south of us in the 1700’s.
That Christianity is the most popular religion in the Americas came from these flukes of history. Future random events may not favor Christianity.
The old saying, “Might makes right” put Christianity here. What will follow we don’t yet know.