史密森学会档案馆馆长埃菲·卡普萨利斯说：“我们在20世纪70年代中期的时候发现它不见了。”

"We realized in the mid-1970s that it was missing," says Effie Kapsalis, head of the Smithsonian Institution Archives.

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自从20世纪70年代发现铜面具以后，考古学家确定了100处巴族人的遗迹，每个遗迹都是一座历史档案馆。

Since the discovery of bronze masks in the 1970s, archeologists have located 100 sites that belonged to the Ba people, each considered a historical archive.

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卡普萨利斯说：“20世纪70年代以来，档案管理流程已经发生了翻天覆地的变化，我们会把价值很高的文档存放在一个保险箱中，甚至连我都无法打开。”

"Archiving practices have changed greatly since the 1970s," says Kapsalis, "and we keep our high value documents in a safe that I don't even have access to."

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Also, the filing cabinet-- that sounds like a minor thing-- was invented in the 1890s.

还有档案橱柜-,听起来很微不足道-,是在19世纪九十年代发明的。

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