Warfare has always been a brutal affair, characterized by an array of strategies and tactics designed to gain an advantage over the enemy. While some of these methods have been overt and brutal, others have been covert and insidious. One such method that has left a mark on history is chemical warfare, the use of toxic substances to incapacitate or kill the opposition. In this article, we will journey back in time to explore the origins and early applications of chemical warfare in ancient history.