Dr. Martin Dean, historical consultant at Babi Yar Holocaust Memorial Center, discusses “Babi Yar and the Holocaust in Ukraine” in the Robert A. Scott Student Center (Alumni Lounges, SC-158) at Ramapo College in Mahwah, 1:20 p.m. Sponsored by Ramapo’s Gross Center for Holocaust and Genocide Studies. 505 Ramapo Valley Road, Mahwah. (201) 684-7409.