The concept of 'Western Bias' is the Eurocentric perspective of the west towards other continents such as Africa where in the western view they tend to feel as a more superior race thus creating a bias on how they view the continent. The idea developed due to the historical, political, and military dominance of the West. This was exemplified by historical writers and western philosophies such as Hobbes, and Machiavelli who developed concepts of realism while Locke & Smith developed liberalism.
the most widely accepted theory among scientist is that the last place humans migrated was to America
Radicals are different from liberals in many ways only blinded see through one partisan point of view
First he replaced other workers that they had with hi own workers then he had agents across the oil buying teritory all set out and then soon enough bought the oil lands
A secondary source is basically an object or writing that is not from that time period, rather using primary sources to write or copy it.
An example might be a textbook on a certain topic that is modern.