Ibn Wahshiyya

Full name: 
Abu Bakr Ahmed ibn 'Ali ibn Qays al-Wahshiyah
Arabic name: 
أبو بكر أحمد بن وحشية
Date of birth: 
900
Date of death: 
1000

Alchemist who is claimed to have cracked the Rosetta stone, eight centuries earlier than Jean-François Champollion. The achievemnet of cracking this code is famed as a critical moment in code-breaking history.