was fifteen. Later he changed his major to chemistry, studying with Pehr Adrian Gadd, the first chair of chemistry at Åbo. In 1779 Gadolin moved to Uppsala...

studied at the Royal Academy of Turku from 1764. He studied under Pehr Kalm and Pehr Adrian Gadd. He was named docent in chemistry, zoology and economics in...

idea was suggested over a hundred years earlier by natural historian Pehr Adrian Gadd, and this theory has continued to receive support into modern times...