28 Responses to The Real Origin of Viking Raids. 1  Well done! 2  Thank you for this article. 3  The shutting of the ancient trade routes to Rome and the East by the Holy Roman Empire was the principle reason that the Rus trade routes down the Volga were established. 4  Pingback: Daily Stuff 5-20-13 MjÃ¶lnir | Ancient Light's Daily Stuff.
By Anne Marie Helmenstine, Ph.D. Gunpowder or black powder is of great historical importance in chemistry. Although it can explode, its principal use is as a propellant. Gunpowder was invented by Chinese alchemists in the 9th century.Originally, it was made by mixing elemental sulfur, charcoal, and saltpeter (potassium nitrate).y Anne Marie Helmenstine, Ph.D. Gunpowder or black powder is of great historical importance in chemistry. Although it can explode, its principal use is as a propellant. Gunpowder was invented by Chinese alchemists in the 9th century.
Best Answer: The earliest known cannon, though not driven by gunpowder, was invented by Ctesibius of Alexandria, in the 3rd century BC.The first documented battlefield use of gunpowder artillery took place on January 28, 1132, when Song General Han Shizhong used huochong to capture a city in Fujian.Ailes Â· 7 years ago.est Answer: The earliest known cannon, though not driven by gunpowder, was invented by Ctesibius of Alexandria, in the 3rd century BC.