Adapted from an image by Tommaso da Modena (public domain), via Wikimedia Commons.
1200–1280
Albertus Magnus
Discovered arsenic.
Element
33AsArsenic
approx 1250
Arsenic compounds were known in ancient times as pigments and poisons. The discovery of the element itself is credited to the scholar Albertus Magnus, in the 1200s.
Keep exploring
Where the dates and stories on this page come from; each event on the timeline links to its own source.
- Albertus MagnusEncyclopaedia Britannica
- ArsenicRoyal Society of Chemistry
- Albertus MagnusWikipedia