Wisconsin's historic sites and museums are all set for a busy summer season. There will be plenty of special events and daily activities in store this year. Throughout the month of June Old World Wisconsin will Celebrate Wisconsin Folklife, a weekends-only event that will focus on a different theme each weekend. On June 22 the Old World Foundation will conduct its festive evening Midsummer Magic event, and on June 30 John Krugler, author of the just-published "Creating Old World Wisconsin: The Struggle to Build an Outdoor History Museum of Ethnic Architecture," will reflect on the historic site's origins on the 37th anniversary of Old World Wisconsin's public opening.