I CHOSE GAS MASK ARTIFACT BECAUSE IT SHOWS HOW COMPLEX AND HORRIFYING WORLD WAR I WAS. GAS MASKS WAS INVENTED BY GARRETT MORGAN AND A FEW OTHERS. GAS MASKS​ WERE DEVELOPED IN​ WORLD WAR I TO PROTECT SOLDIERS FROM EFFECTS OF CHLORIDE GAS. CHLORIDE GAS EFFECTS WAS DESCRIBED AS "A BURNING SENSATION IN THE HEAD, RED-HOT NEEDLES IN THE LUNGS, THE THROAT SEIZED AS BY A STRANGLER".
I THINK THAT THE LEWIS LIGHT MACHINE GUN IS THE MOST IMPORTANT ARTIFACT FROM WWI. ISAAC NEWTON LEWIS DESIGNED THE MACHINE GUN FROM AN ORIGINAL MACHINE GUN DESIGNED BY SAMUEL MACLEAN. THE LEWIS MACHINE GUN WAS LIGHT ENOUGH TO CARRY FORWARD RAPIDLY IN AN ATTACK. IT WAS AIR-COOLED AND FED BY A 47-ROUND MAGAZINE, WHICH WEIGHED ABOUT 28.66 POUNDS WHEN UNLOADED. THE GUN WAS USED IN WWI, WW2, AND THE KOREAN WAR.