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In page Constantin von Tischendorf:

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Tischendorf pursued a constant course of editorial labors, mainly on the New Testament, until he was broken down by overwork in 1873.[2] Prof. Christfried Boettrich (Leipzig University, Prof. of Theology) explained in a publication on Tischendorf's Letter that he was motivated to prove scientifically that the words of the Bible were trustworthily transmitted over the centuries.[citation needed]