<span> The motion picture was invented in the </span>1890s<span>, when motion picture cameras were invented and film production companies started to be established.</span>
Answer: People where able to get stuff by trading
Explanation:
They created a democracy untainted by wealth, privileged birth or corruption where every (eligible) citizen can take part in politics/ assembly.
The four river valley civilizations were the Tigris & Euphrates Valleys, the Nile River Valley, the Indus River Valley, and the Yellow River Valley. Civilizations developed around rivers because their waters provided places to hunt and fish. Also, as the rivers flooded, the lands around them became fertile.
