我们中国真正伟大的发明 世界上第一个火器 heilongjiang hand...

此生仍在人间 : 我们中国真正伟大的发明 世界上第一个火器 heilongjiang hand cannon 1288年被女真人发明 马镫也是女真人发明的！
https://en.wikipedia.org/wiki/Heilongjiang_hand_cannon
The Heilongjiang hand cannon or hand-gun[a] is a bronze hand cannon[1] manufactured no later than 1288 and is the world's oldest confirmed surviving firearm.[2] It weighs 3.55 kg (7.83 pounds) and is 34 centimeters (13.4 inches) long. The Heilongjiang hand cannon was excavated during the 1970s in Banlachengzi, a village in Acheng District, Heilongjiang province, China.[3] It was found alongside other bronze artifacts made in the style of the Jurchen Jin Dynasty (12th–13th century).[2] The hand cannon was probably used in battles fought nearby Banlachengzi in 1287 and 1288.[2] The History of Yuan states that a Jurchen commander by the name of Li Ting led a group of soldiers equipped with hand cannons into a military camp in 1288, as part of an anti-rebellion campaign for the Yuan dynasty.[4] The cannon currently resides at the Heilongjiang Provincial Museum in Harbin, China.[5]