In 1982, a small group of dedicated women urged support for a discovery-based science center for Anchorage-area families. Barbara Baugh, Anne Bulmer, Terry Dittman and Yvonne Merrill came to be known as the Core Four. Through their diligence and commitment, along with grants, donations and more than 100 volunteers, The Imaginarium was incorporated in 1985 and opened in 1987 as a nonprofit science center.
The Imaginarium developed a national reputation for educational, entertaining and interactive science exhibits and programs designed to increase a child's interest in science and technology. The center built well-respected programs for outreach, summer camps, homeschoolers and preschoolers.
In July 2008, The Imaginarium legally merged with the Anchorage Museum, adding science to the museum's mission. The Imaginarium's former facility on Fifth Avenue closed in August 2009. It re-opens May 2010 within the Anchorage Museum as the expanded, state-of-the-art Imaginarium Discovery Center.