By David W. Tschanz
"In the seventh century BC, Greek colonists established the city of Cyrene on the Libyan coast. Shortly after their arrival, wrote the Greek botanist Theophrastus (ca. 370-288 BC), they discovered silphium -- the plant that would make them rich and the city famous. A member of the genus Feula, (commonly known as giant fennel), a large group of plants with deeply divided leaves and yellow flowers, the pungent sap from silphium's stems and roots was used in cough syrups. It also gave food a rich distinctive taste when used as an additive. Of far greater importance was its value as a birth control agent. "