over the years there has been a lot of chemical warfare for example ww1 where it all began. it was 1914 in Europe and a family lays dead the Ferdinand's Europe thought it was Serbia so they declared war hence ww1.
it was 1914 the Germans used Xylyl bromide it would give optical burning, loss of motor control,make your eyelids twitch,make you cry, coughing and sneezing but usually no severe skin damage it was the beginning of chemical warfare.
