【灌一瓢】集思广益: toastmaster table topics: Bastille Day - France

This week, my toastmaster club table topics theme is: Bastille Day - France. I am trying to come up with something interesting to talk about, and prepare for a speech for the table topics, in case I am called upon(which is very likely, since I have been "lucky" for the past three weeks). But the theme is just so obscure that my already-空洞 brain goes blank on this. Any ideas or possible questions you can think of?