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Answer:
23 September
Youth Climate Summit, 21 September
This historic event will take place as part of a weekend of events leading up to the UN Secretary-General's Climate Action Summit on 23 September.
Explanation:
Peisistratos and his two sons, Hipparchus and Hippias.
Answer: The civilizations of the Maya, Aztec, and Inca that once flourished in Central and South America shared common elements. People practiced farming, developed social structures, raised armies, and worshipped many gods. The three civilizations were as diverse as the terrains in which they lived.