Some Thoughts on Early Civilizations

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Some Thoughts on Early Civilizations

Did anyone notice the following phenomena?
1. The rise of civilizations are virtually simultaneous, considering the large time gap between the beginning of speaking (around 120 thousands years ago) and the first civilization in Mesopotamia five thousand years ago.
2. After Mesopotamia, the rise of various civilizations around the Afro-Eurasian Continent is related to the distance to the political center of Mesopotamia: the greater the distance, the longer the delay. Thus, the order is: Mesopotamia (ca. 5500 BP), Egypt (ca. 5200 BP), Indus Valley (ca. 4500 BP), Minoa (ca. 4000 BP), Yellow River (3400-3200 BP). This relation also holds if your add Maya and Inca to the list.
These phenomena suggest that the rise of the early civilizations is a synchronized historical event; it spread from the original center in southern Iraq to the rest of the world. Therefore, all the early civilization except the Mesopotamian civilization could be regarded as “derivative” in the sense that they are recreation in different localities based on the same concept. For example, the idea of writing could be adopted by various nations although the pictographic signs are different. As matter of fact, I even noticed some similarities between the early cuneiforms and the oracle script in China. There is a word in cuneiform meaning God or Heaven, it also exists in Chinese (both ancient and modern); it is lacking in English. And their signs are somehow similar as well. Could it be coincidental?