"The compound may have been created by either Jābir ibn Hayyān in the 8th century[2] or Raymundus Lullus in
1275[2][3], although there is no contemporary evidence of this. It was first synthesized in 1540 by Valerius Cordus and , who called it "sweet oil of vitriol" (oleum dulce vitrioli)—the name reflects the fact that it is obtained by distilling a mixture of ethanol and sulfuric acid (then known as oil of vitriol)—and noted some of its medicinal properties.[2] At about the same time, Theophrastus Bombastus von Hohenheim, better known as Paracelsus, discovered ether's analgesic properties in chickens.[2] The name ether was given to the substance in 1730 by August Siegmund Frobenius."