Every year, Spiritists from around the world gather in front of Allan Kardec's grave on a specific date. Which date?
The answer
Allan Kardec died on 31 March 1869. Every year on that date, delegations, notably from Brazil — where Spiritism counts millions of followers — gather in front of the dolmen, flowers in hand.
This question belongs to the “The Strange and the Paranormal” series of the Père-Lachaise quiz: ten questions, a story behind every right answer.