Oren Lyons, Natinoal Lacrosse Hall of Fame player, Onondaga Turtle Clan Faithkeeper, and University of Buffalo faculty member will speak about the culture and spiritual role of lacrosse as a way of maintaining tribal relations. This event begins at 4 p.m. in Granoff Center for the Creative Arts, Martinos Auditorium, 154 Angell St. http://brown.edu/Student_Services/Native_Student_Services/