“Tiananmnen + 20 Years” is the topic of the 29th annual MAYDAY! Peace Conference on Wednesday, April 29. Andrew Nathan, Ph. D., a leading expert on Chinese affairs and politics and professor at the Columbia University, opens the daylong conference in Christ Chapel at 10 a.m. The afternoon keynote speaker is Yang Jianli, Ph.D., human right activist and participant in the 1989 Tiananmen Square demonstrations. For more information, contact the Office of Marketing and Communication at 507-933-7520.