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For more than three thousand years men have quarreled concerning the formulas of their faith. The earth has been drenched with blood shed in this cause, the face of day darkened with the blackness of the crimes perpetrated in its name.

Freedom from Religion foundation profile, ffrf.org.
For more than three thousand years men have quarreled concerning the formulas of their faith. The earth has been drenched with blood shed in this cause, the face of day darkened with the blackness of the crimes