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This drawback led a German monk, Theophilus , in the 12th century to warn against paint recipes including olive oil. It was reported that Aetius Amidenus , a medical writer in the 5th century, mentioned the use of a drying oil as a varnish on paintings. Similarly, it seems that perilla oil was used in Japan in painting after addition of lead in the 8th century. According to Giorgio Vasari (1511-1574) the technique of oil painting, as used till now with few technical modifications, was invented or re-invented in Europe around 1410 by Jan van Eyck (1390 -1441).
Oil shale was one of the first sources of mineral oil used by humans. Its earliest recorded use was in Switzerland and Austria in the early 14th century. In 1596, the personal physician of Frederick I, Duke of Wuerttemberg wÃ¼rttemberg wrote of its healing. Properties shale oil was used to light the streets Of, Modena italy at the turn of the 17th. century