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硒是1817年瑞士化学家Borzelius在生产硫酸的剩余物中检出,并确定其为一种化学元素。早期人们仅仅注意到它的毒性。最早记录其毒性间接来自中国,马可波罗曾描述其驮畜吃了一种现在证实含硒高的饲草而患病。
Selenium was found in 1817 by the Swiss chemist Borzelius in the remainder of the sulfuric acid production and was identified as a chemical element. Early people only noticed its toxicity. The earliest record of its toxicity indirectly came from China, where Marco Polo described his pack animals as eating a forage that now confirms selenium-rich forages.