When were explosives first used?

Why was poison gas a potential hazard for the troops that used it? Where would Victorians put nuremburg angels? What country is the world leader in aerospace? What reminder of the war keep the residents up at night? Which town did the US airborne troops capture? Joint actions during a lat pulldown? What does butteries mean? Was Saint Matthew martyred? Who was the most outspoken opponent of the Kansas-Nebraska Act? What was the Southern cause of the Civil War? A-bomb on Hiroshima? Did all soldiers in the Civil War sleep in tents? What brought the british into the war? What world war 2 action was later determined to be a violation of civil liberties? How many militia were there? Who was involved in the battle for Berlin? Who died one month before the end of World War 2? Shoud women go out to work? What wars has the US been in since the Vietnam war? People who refuse wars are called?