The U.S. and its allies have long been complicit in the manufacturing and use of biological and chemical weapons, yet have targeted other countries for alleged possession and use of these same weapons. This partial chronology is intended as a starting point for critical research and analysis of bio-chemical weaponry and foreign policy.
400s BC: Spartan Greeks use sulfur fumes against enemy soldiers.
256 AD: Sasanian Persian Empire may have used toxic smoke against Roman soldiers in a tunnel
1346: Tatars catapult plague-infected corpses into Italian trade settlement in Crimea.
1500s: Spanish conquistadors use biological warfare against indigenous peoples in the Americas.
1763: British General Jeffrey Amherst advocates use of smallpox blankets against Native peoples during Pontiacís Rebellion. Smallpox blankets are given to Native delegates during talks at Fort Pitt.