MANKATO-November 6, 2012-(KMKO)--The Blue Earth Historical Museum has been open for 111 years and the Society is holding an open house to celebrate. All museum exhibits will be open to the public for free from 10 a.m. to 7 p.m. on Friday and 10 a.m. to 4 p.m. on Saturday. The Heritage Center will offer refreshments, door prizes, and Holiday gift shop specials. For more information visit bechshistory.com