Use of written language
Significance of shamans and priests
Two great capitals
Failure to provide the basis for a continuous civilization
Sahara highs
Monsoons
Hurricanes
Typhoons
Assyrian
Aryan
Shang
Harappan
Mohenjo-Daro
Memphis
Loyang
Nineveh
Semitic
Egyptian
Hamitic
Indo-European
The matriarchal nuclear family
The patriarchal nuclear family
The matriarchal extended family
The patriarchal extended family
The patriarchal extended family
The matriarchal extended family
The patriarchal nuclear family
The matriarchal nuclear family
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