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The oxide was first identified as containing a new element by Haüy (of crystal fame) and Vauquelin in 1797 or 1798 by decomposing beryl. The metal itself was isolated independently by Wöhler and Bussy in 1818, through the reduction of BeCl2 by potassium metal. It was merely a laboratory curiosity until the excellent properties of its alloys with copper were recognized in the 1930's. It was considered a strategic material in World War II because of these alloys.
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