Dr.Hahnemann proved it accidentally in male artist who developed severe illness, as he performs his duties. Even after careful treatment of Hahnemann he was not relieved.      Once our master visited his studio he found that the artist was using the ink of sepia for paintings and frequently the brush was moistened on the mouth of painter, then the moistening of the brush on the mouth was abandoned the artist was relieved. This instituted Hahnemann to prove Sepia succus.