Albertus Magnus, German theologian and philosopher, 13th century.
© Science Museum / Science & Society Picture Library
Later engraving from a painting made by Fra Angelico in the early 15th century. Albertus Magnus (1193-1280), also known as Saint Albert the Great, and the Universal Doctor, was a scholastic philosopher and Doctor of the Church. He joined the Dominican order in 1223 and taught at Hildesheim, Freiburg, Regensburg, Strasbourg, and Cologne. The University of Paris made him doctor of theology in 1245. He also made botanical observations, published in works such as 'De vegetabilibus', and was the first person to produce arsenic in a free form. Illustration from 'Das Buch Der Grossen Chemiker, Band I' , by Gunther Bugge, published in Berlin, c 1929-1930.