Suggested Topics
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Biography
Germany
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History
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1350-1430
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Astronomisches Instrument
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Design and construction
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Deutscher Orden
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Estonia
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Geschichte
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Geschichte 1190-1562
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Grafschaft Mark
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Grand Duke of Lithuania
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Kings and rulers
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Livland
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Livonia
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Mark <Grafschaft>
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Optisches Instrument
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Order of the Brothers of the Sword
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Orders of knighthood and chivalry
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Ritter
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Ritterbruder
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Schmidt telescopes
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Schmidt, Bernhard
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Telescope makers
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Telescopes
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Teutonic Knights
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Westphalians
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Witold
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