During ww1 (1914-1918) large numbers of women were recruited into jobs that the men would normally do because they were in the war. New jobs also came up as part of the war effort. For example women were working in factories becoming the largest single employer of women during the war. Around this time the government began coordinating the employment   Of women through campaigns and recruitment drives. This led to women working in places where men would normally work. For example women were working as railway guards, ticket collectors, buses and tram conductors, postal workers, police, firefighters and bank tellers and clerks. Women were even working with huge heavy machinery in engeering, led carts horses on farms, and worked in civil service and factories. Even though they would receive lower wages even though they would do the same work and thus began some of the earliest demands for equal pay. by 1917 munitions factories, which primarily employed women workers, produced 80% of the weapons and shells used by the British Army known as “canaries” because that is used as an explosive agent in munitions which caused their skin to turn yellow, these women risked their lives working with poisonous subsenses without adequate protective clothing or the required safety measures. Around 400 women had died from overexposure  to TNT during WW1.