The only big change came in 1960 when they consolidated the ones around Paris, because of the growth of the Paris region, as you can see there.

仅在1960年由于巴黎区的发展,发生了一次改变,他们将巴黎周边的省进行合并,在这里可以看到

耶鲁公开课 - 1871年后的法国课程节选