At what ages were Romans considered adults?

For ancient Romans, a boy became a man at 16.

Explanation :

There was a public festival, the Liberalia on March 17, at which boys donned the toga virilis (also called the toga pura or toga libera, pure and free respectively), the toga of manhood. Beforehand, at home in front of their family altar, a boy would remove his bulla, a protective charm necklace that allegedly warded off the evil eye, remove the toga praetexta, or toga for children, and soon after he would enter the army for his mandatory military service.

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after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bilateral multipolar bipolar unilateral

after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bipolar.  

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true false

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true.

explanation:

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.