The Germans themselves I should regard as aboriginal, and not mixed at all with other races through immigration or intercourse. For in former times, … - Tacitus

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The Germans themselves I should regard as aboriginal, and not mixed at all with other races through immigration or intercourse. For in former times, it was not by land but on shipboard that those who sought to emigrate would arrive; and the boundless and, so to speak, hostile ocean beyond us, is seldom entered by a sail from our world.