The Douglas County Historical Society will host a roundtable discussion on Superior's labor movement to usher in its new exhibit. This event will open the Society's Summer season as well as recognize the international working class holiday, May Day. The exhibit will feature the 1889-1890 street and utility strikes and the 1894 railroad strike. Dr. Richard Hudelson, Dr. Joel Sipress and Superior Federation of Labor President, Janice Terry will head the discussions. The event is open to the public. Refreshments will be served.