when did the chinese first use gunpowder as a weapon
History of gunpowder At this point the formula contained too little saltpeter (about 50%) to be explosive, but the mixture was highly flammable, and contemporary weapons reflected this in their deployment as mainly shock and incendiary weapons. One of the first, if not the first of these weapons was the fire arrow.[13] The first possible reference to the use of fire arrows was by the Southern Wu in 904 during the siege of Yuzhang, when an officer under Yang Xingmi by the name of Zheng Fan (鄭璠) ordered his troops to "shoot off a machine to let fire and burn the Longsha Gate," after which he and his troops dashed over the fire into the city and captured it, and he was promoted to Prime Minister Inspectorate for his efforts and the burns his body endured.[14] A later account of this event corroborated with the report and explained that "by let fire (飛火) is meant things like firebombs and fire arrows."[13] Arrows carrying gunpowder was possibly the most applicable form of gunpowder weaponry at the time, as early gunpowder may have only produced an effective flame when exposed to oxygen, thus the rush of air around the arrow in flight would have provided a suitable catalyst for the reaction.[13]
Names of China The names of China include the many contemporary and historical appellations given in various languages for the East Asian country known as Zhongguo (中國/中国) in its official language. China, the name in English for the country, was derived from Portuguese in the 16th century, and became popular in the mid 19th century.[1] It is believed to be a borrowing from Middle Persian, and some have traced it further back to Sanskrit. It is also generally thought that the ultimate source of the name China is the Chinese word "Qin" (Chinese: 秦), the name of the dynasty that unified China but also existed as a state for many centuries prior. There are however other alternative suggestions for the origin of the word.