To develop bronze tools,the wheel, the plow, writing and mathematics
<span>The social changes which occurred after World War I were:
</span><span>
Increased mobility through technology.</span>
New roles for women.<span>
</span>Breaks with tradition.
It was all because of the women efforts, they received the right to vote and many restrictions on women are taken off. Additionally, as a result of the social change in technology Tanks and Gas warfare technology were introduced.
Answer:
Because there was an argument on which was better, Capitalist and Communist. This problem lead into the Cold War.
Explanation:
When did the caste system evolve into a four tiered hierarchy?A.) when the Aryans ruled over the region - They arrived in 1500BC and developed the grouping of people based on their status and activities in life.
