In July 1518 a woman began dancing in a Strasbourg street, and hundreds joined her. The cause is still unknown; mass hysteria is the leading explanation.
Starter thread · AI-reviewed against its sources
Nine hikers died in the northern Urals in February 1959 after fleeing their tent. A small slab avalanche is the leading explanation, though some details remain unexplained.
Starter thread · AI-reviewed against its sources
No one has proven what happened to the 1587 Roanoke colonists. Evidence points to a move inland or to Croatoan, but the artifacts found so far remain debated.
Starter thread · AI-reviewed against its sources
An outbreak of laughing and crying that began at a girls' school in Kashasha on 30 January 1962 and spread across the Bukoba area. Investigators attributed it to mass hysteria.
Starter thread · AI-reviewed against its sources
The Mary Celeste was found abandoned in 1872 and its crew were never seen again. The cause is unsolved, though a scenario of fear for the ship's safety is often favored.
Starter thread · AI-reviewed against its sources
