It's also interesting to juxtapose this with the recent history of Christianity and observe the within-well-documented-recorded-modern-record consequences of fa

It's also interesting to juxtapose this with the recent history of Christianity and observe the within-well-documented-recorded-modern-record consequences of failed apocalypse cults to this day, because there are fascinating echoes. The Millerites believed Jesus would return in 1843-1844. When he did not, many fell away from the faith (which spiked to 50k-100,000 at its peak), but many came to different conclusions (that Miller had the date wrong but was fundamentally correct about its imminence, or that Miller's announcement of the date had an effect that changed the date, and some others). In consequence, there are now seven Christian sub-sects that trace their lineage back to The Great Disappointment, including the Seventh-day Adventists. https://en.wikipedia.org/wiki/Adventism https://en.wikipedia.org/wiki/Adventism has an interesting diagram of them.