I was passing high over Calcutta on a lovely clear night and asked ATC what all the flashes all over the city were- it was quite stunning. It was Diwali again. Seemed to be no colours, just brilliant white flashes everywhere.
Wondering- Guy Fawkes was an alleged plotter trying to blow up Parliament and the King in 15xx(?). Caught and burnt at the stake for his sins along with his gang (well, they were Catholics after all). It helped drive Britain Protestant, and we celebrate his burning with rockets and fireworks- I don't think people understand why- it's just an excuse to make life miserable for all animals for a week.