We know the Chinese invented fireworks. But how did Italians contribute to America’s July 4th celebrations? And what are the only two animal species that wage war on their own kind? (Photo: Yannick Bammert, Wikimedia Commons) https://chrt.fm/track/E1F5AD/http://feeds.soundcloud.com/stream/1081853701-theofframp-098-firecracker-trivia.mp3