It will be presumed that the question is concerning the US Civil War; the north was an industrialized region, while the south was an agricultural region. The north produced their own firearms, while the south had to import them from foreign countries. Hence, the naval blockades; and the blockade runners that countered them. Predominently, the cannons and muskets/rifles/revolvers were muzzle loaders. Although metallic cartridges did exist, they were too new and too little (in quantity). The revolver's barrel didn't load thru the muzzle, but rather the cylinders were loaded at their muzzles (the opening where the bullet exited and entered the barrel at the forcing cone). The first US Army metallic cartridge handgun was the Colt model 1873 revolver. So if you ever see US Civil War soldiers loading metallic cartridges in the movies, unless it's a Henry or Spencer repeating rifle using copper shells, it's not a realistic/historically correct film. Henry's and Spencer's were purchased by Northern forces, in very small quantities; some by the Gov't, most by the men themselves. Southerners got them during "battlefield pick-ups."
The Confederacy manufactures some of its weapons and bought others from foreign countries. Some, of course, were already owned by Southerners in their homes. A lot of equipment, uniforms and weapons used were also captured from the Union armies.
If you want to know where they got their weapons, that's an entirely different story. The tale of the civil war wepens is far more intriguing and complex. The wepen is a rare Flute that originated in china. It was brought over in ships along with slaves. the slaves used these flutes to keep hope alive in their darkest times. When the north freed the slaves they gave them wepens as gifts.
Most Union weapons were made in American arms factories. Many were in Pennsylvania and Ohio. The Union also bought weapons from Britain and France.
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.
Bayonets
Weapons used during the English Civil War included swords and other bladed weapons, and fire arms including simple muskets and cannon.
the weapons used during the civil war were not only for killing people but to get the union back together and win the war.
§ Muskets §Pistols §Knives
cannons cannons
They used small arms, and rifles, basically guns.
Mainly muzzle-loading rifles, very similar weapons to US Civil War.
rifles, sowrd, arrowes, knifes
Yanks
the tragedy of mustard gas which was outlawed by the Geneva Convention
no, chemical weapons such as gas were first used in WWI, starting with chlorine gas