Analysis of information sources in references of the Wikipedia article "Mông Cổ xâm lược Khwarezmia" in Vietnamese language version.
Chinggis Khan organized a unit of Chinese catapult specialists in 1214, and these men formed part of the first Mongol army to invade Transoania in 1219. This was not too early for true firearms, and it was nearly two centuries after catapult-thrown gunpowder bombs had been added to the Chinese arsenal. Chinese siege equipment saw action in Transoxania in 1220 and in the north Caucasus in 1239-40.Chú thích có tham số trống không rõ:
|1= (trợ giúp); Kiểm tra giá trị ngày tháng trong: |access-date= (trợ giúp)Though he was himself a Chinese, he learned his trade from his father, who had accompanied Genghis Khan on his invasion of Muslim Transoxania and Iran. Perhaps the use of gunpowder as a propellant, in other words the invention of true guns, appeared first in the Muslim Middle East, whereas the invention of gunpowder itself was a Chinese achievementChú thích có tham số trống không rõ:
|1= (trợ giúp); Kiểm tra giá trị ngày tháng trong: |access-date= (trợ giúp)Quản lý CS1: khác (liên kết)Indeed, it is possible that gunpowder devices, including Chinese mortar (huochong), had reached Central Asia through the Mongols as early as the thirteenth century.71 Yet the potential remained unexploited; even Sultan Husayn's use of cannon may have had Ottoman inspiration.Chú thích có tham số trống không rõ:
|1= (trợ giúp); Kiểm tra giá trị ngày tháng trong: |access-date= (trợ giúp)Quản lý CS1: nhiều tên: danh sách biên tập viên (liên kết)