Bibliothèque nationale de France
The disaster occurred on May 30th, 1770, as part of the celebrations surrounding Marie-Antoinette's marriage to Louis XVI. All was going well, when suddenly a gust of wind blew down among the crowd some rockets only partially exploded.
As panic descended upon the crowd, there was a rush towards the Rue Royale, and many were trampled as the crowd forced its way down the narrow street. The official government death toll was listed as 133, but many citizens felt that total massively underestimated the true number of casualties.