Which innovation gave the Sumerians an advantage in war? Bronze
Irrigation
Cuneiform
Iron

Bronze

Explanation:

Ancient Sumer may have been the first civilization to start adding tin to copper to make bronze. Bronze was harder and more durable than copper, which made bronze a better metal for tools and weapons.

the labor movement in the united states grew out of the need to protect the common interest of workers

for those in the industrial sector organized labor unions fought for better wages reasonable hours and safer working conditions

  in the 19th century trade unionism was mainly a movement of skilled workers.

hope this

representative government

explanation:

american revolution: major events leading to declaration of independence. 1765-1766; tax introduced on legal documents to pay for defense of colonies. 1766: stamp act repealed after merchants protesting due to their goods not being bout and officials being threatened.