Learn about Hoffman Estates history, including the Sunderlage Farmhouse and the Greve Cemetery. This Historical Sites Commission-sponsored free event will be held at the Sunderlage Farmhouse on the corner of Volid Drive and Vista Lane on Sunday, June 27, from 1 p.m. to 3 p.m. There will be a free petting zoo, tours of the house and refreshments. The Schaumburg Township Historical Society will be on hand to provide historic information.