Terre Haute, In. – Vigo County History Center is hosting a presentation Saturday entitled “Who Was George Rogers Clark?” Clark was an American military officer and frontiersman that played a pivotal role in the American Revolution in the Wabash Valley. The presentation begins at 1:30 Saturday in the 3rd floor auditorium of the Vigo County History Center downtown. Vermillion County Historian George Sanquenetti will give the presentation. He is a past volunteer for the George Rogers Clark National Historical Park in Vincennes and has been involved in Living History activities throughout the state.