Albertus Magnus (ca. 1200–80) was a priest born in Germany,
who was educated at Padua and went on to become a fine teacher
in Paris. While a certain degree of science had been used during
the Roman Empire, Albertus was the first European to use the
scientific method. He built his theories on Aristotle and added
to these the idea that there could be the possibility of chemical
change. The church ultimately canonized him as a patron saint
of scientists.
