Word: prehistorians
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Dates: during 2000-2009
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That's not to say that he or the cave's curator, the prehistorian Jean-Michel Geneste, could have been entirely surprised. The previous spring, workers had finished installing a $28,000 air-conditioning system beneath the stairs leading down to the cave. The new machine represented a major change in the way Lascaux's delicate balance of temperature and humidity had been regulated for more than three decades. The old system, installed in 1968 after years of minute studies of the cave's climate, relied on Lascaux's natural currents to pass air over a cold point and ensure...