It was called "the main street" because it started from the castle and joined the town hall. Note that the stairs leading to shops today have remained where they were a century ago!
During the popular celebrations of 14 July (French National Day), on the Place de la République was organised a greasy pole, named "mât de cocagne" which was planted in the ground and topped by a hoop from which "prizes" were hung : hams and other rewards for those who managed to reach the top. But to make matters worse, the mat was coated with black soap or grease !