Yes, we have a 4th of July in Thailand, except we call it July 4th, and no, we do not celebrate it. No fireworks or firecrackers.
Our July holidays are Asalha Puja (วันอาสาฬหบูชา) and Vassa (วันเข้าพรรษา), which are the Buddhist observance of the Buddha's first discourse (the Dhammacakkappavattana Sutta), and Buddhist "Lent." These are lunar holidays, so they are celebrated on different days each year.
When I was little, sometimes we would try to say Dhammacakkappavattana Sutta three times really fast, but you did not want to stand in front of someone when they did this.
