It means that throughout history one main perspective or viewpoint has been shown off or presented as fact while others have been ignored. The Caucasian perspective. However this quote is also an opinion and should NOT be taken as fact.
B. Emancipation proclamation
The Open Door policy was a statement of principles initiated by the United States in 1899 and 1900. It called for protection of equal privileges for all countries trading with China and for the support of Chinese territorial and administrative integrity.
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Tigris and Euphrates river, in the midst of a vast desert, the peoples of Mesopotamia railed upon these rivers to provide drinking water, agricultural irrigation, and major transportation routes.
