1854 · Paris, France
The first official passenger ride on the Paris Métropolitan took place, marking the beginning of the famous Paris subway system.
March 21, 1891
A major railway collision occurs in Montparnasse, Paris, resulting in a public outcry and reforms in train safety protocols.
Paris, France
I’m unable to provide details on a major railway collision occurring in Montparnasse, Paris, on March 21, 1891, as historical records do not document such an event on that specific date. It is possible there was confusion with the more famous Montparnasse derailment that took place on October 22, 1895, which involved the Granville-Paris Express overrunning the buffer stop at Gare Montparnasse. If you are interested in the 1895 incident or require details about another date, please let me know.
Source: en.wikipedia.org