Western Illinois University is celebrating the 20th anniversary of the annual John Hallwas Liberal Arts Lecture. This year, WIU Professor Emeritus John Hallwas delivered a lecture on, “Liberal Arts Education in a Time of Crisis,” and the events will continue into October with WIU English Professor Everett Hamner delivering “Welcome to Spaceship Earth: Reimagining Climate Action via Popular Culture” at 4 p.m. Thursday, Oct. 6 in WIU-QC Riverfront Hall, room 111.