The Tang Dynasty By Taj Period: 618 to 907 The Tang Dynasty Period: 626 to 649 Emperor Taizong http://www.metmuseum.org/toah/hd/tang/hd_tang.htm Period: 690 to 705 Empress Wu; Ruled for only 15 years under her own name https://www.smithsonianmag.com/history/the-demonization-of-empress-wu-20743091/ Period: 712 to 756 Emperor Xuanzong https://www.metmuseum.org/toah/hd/tang/hd_tang.htm 800 Gunpowder becomes widespread in China; People begin to use it in Fireworks and Firecrackers https://britishmuseum.tumblr.com/post/101839324552/gunpowder-was-invented-in-china-during-the-tang