Greensburg, In. — The Greensburg High School Chautauqua is a program intended to promote diversity among students, faculty, administrators and community members.Thursday ScheduleFrank Grunwald will speak at the Greensburg Community High School at 7:55 a.m. Grunwald is a concentration camp survivor who was held after the Nazis invaded Czechoslovakia in 1939. Grunwald currently lives in Indianapolis and is retired after working as an industrial designer.Jeff Smulyan is the founder and CEO of Emmis Communications, he will speak at 9:55 a.m. As well as a successful businessman, Smulyan also was instrumental in advocating for wireless devices to receive FM radio on smartphones.Bobby Cox, commissioner of the Indiana High School Athletic Association will speak at 11:55 a.m. Cox served as assistant commissioner in 2000 until he was promoted in 2011. He has 21 years of experience as a teacher, coach, and athletic administrator for Carmel Clay Schools.Alison Arngrim will speak at 12:40 p.m. Arngrim is best known for her role as Nellie Oleson on the hit show “Little House on the Prairie” from 1974 until 1981.Irina Margareta Nistor will speak at 1:35 p.m. She is coming from Bucharest to talk about bringing American movies to communist Romania in the 1980s. She is the focus of Netflix documentary called “Chuck Norris vs. Communisim,” that details how she introduced American values and culture to her country more three decades ago.Jamie O’Neal, an award-winning country singer and songwriter, will speak at 2:15 p.m. O’Neal has had No. 1 singles such as “There is No Arizona” and “When I Think About Angels.”Friday ScheduleAt 7:55 a.m. Bob Gimlin of Patterson-Gimlin Film, will talk about the famous short motion picture of the unidentified subject known as “Bigfoot.” Gimlin captured the video in Orleans, California back in 1967. He did not begin speaking publicly about the experience until 2005. .Dr. Peter Larson will speak at 9:55 a.m. Larson is the president of the Black Hills Institute of Geological Research. He led the team that excavated the largest and most complete tyrannosaurus rex, “Sue,” ever found. “Sue” is now on display at The Field Museum in Chicago.Beginning at 7 p.m. Thursday, November 8 an evening session including Arngrim, O’Neal, Larson, Gimlin, and Nistor at the Greensburg Community High School Auditorium. Tickets are $5.