Humans have been around for ages
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I am that odd creature the female bull snake, that is your answer
<span>After China was brought back together culturally under the Ming, they started to prosper. With the prospering, the population began to rise which led to diversity and an expansion of culture. Hongwu's son was the one that started to encourage voyages and explorations because he was curious about foreigners. He sent Zheng He.</span>
Mesopotamian irrigation systems allowed the civilization to develop because the early advancements in irrigation allowed for plentiful agricultural development in the Mesopotamian Region. The region already had plentiful soil and with expanded irrigation it allowed for more plentiful development of the land that led to the growth and development of Mesopotamia well before similar irrigation methods were discovered elsewhere.