Roughly 1,000 years ago in China. We do not know the exact date and place. They were a crude form of cannon. The first portable firearms used in war that we know of were the "hand guns" used at the battle of Ain Jalut 3 September 1260.
first in the civil war and then in vietnam
All sides already possessed them before the war.
Machine guns were first used in the trenches of the First World War. They were mainly used as defensive weapons because they were too heavy to carry, and they required three or so men to operate them. The first true rapid fire gun, the Gatling gun, was used after the Civil War in engagements against Indian tribes.
The guns used in war to shoot down planes are called antiaircraft guns.
The use of machine guns during the First World War is one of the primary factors that led to the war's high death roll. They also contributed to the development of trench warfare which was used extensively in the war.
guns firing through propellor
guns
No. The first "assualt rifle" was created late in the war by the Germans. The British used bolt action rifles, carbines, submachine guns an light machine guns.
Guns and cannons
Weapons were used in battle during the civil war, at many battlefields in both North and South territory. The early forms of machine guns were used for the first time in the Civil War.
the first rapid fire gun was the hand crannked gatling gun used in the civil war but the maxim was the first true machine gun which was developed not long after the gatling
All guns use gunpowder (gun+powder= gunpowder). The 15th century saw early crude guns first being used, including use in war. However, the early guns were not accurate nor reliable, and the military still used bows, swords, lances and pikes MUCH more frequently than guns.