The light coloured slabs in the road at the corner of Rue de la Roquette and Rue de la Croix-Fauban mark the location where what events of historical interest happened?

The first new player to comment on the website with the correct answer wins a free drink at their next iQ Trivia quiz.
After finding it was not: Where Marie Antoinette and countless others met the Guillotine; where the Bastille was; or where the 1919 Paris peace Conference was held, I couldn’t think of any other interesting occurrences in Paris.
You had it with the guillotine. It was right outside an old prison and many beheading were carried out there.