When academic honor society Phi Beta Kappa sought to restrict its membership to students of the liberal arts in the late 19th century, Edward H. Williams Jr., a member of Phi Beta Kappa and head of the mining department at Lehigh University, formulated the idea of an honor society for those studying technical subjects. Irving Andrew Heikes, the valedictorian of his class at Lehigh, was initiated as the first student member of Tau Beta Pi on June 15, 1885. A statue on Lehigh's campus commemorates this event.