When did Monsanto open their exhibit 'The House of the Future' at Disneyland?

The 'Monsanto House of the Future' was an attraction at Disneyland's Tomorrowland in Anaheim, California, USA, from 1957 to 1967. Sponsored by Monsanto Company and 'Walt Disney Imagineering', the 'House of the Future' wanted to demonstrate plastics' versatility postulate it as a high-quality, engineered material.

The idea of the attraction goes as far back as 1957, when Walt Disney introduced a concept for an atomic-themed exhibit in 'Tomorrowland' on the Disneyland television show episode, 'Our Friend The Atom'.

The attraction offered a tour of a home of the future, featuring household appliances such as microwave ovens, which eventually became commonplace. The house saw over 435,000 visitors within the first six weeks of opening, and ultimately saw over 20 million visitors before being closed in 1967.

After the closing, Monsanto quickly opened another attraction called 'Adventure Thru Inner Space' as part of the new 'Tomorrowland'. It opened as a free attraction, unlike most, but required a "C" ticket starting in 1972 and closed in 1985 to make way for Disney and George Lucas's new 'Star Tours' attraction, which opened in early 1987.

By this time Monsanto had turned into a huge, agri-chemical company. In 1977, Monsanto ended their sponsorship for the attraction. All visual and audio references were removed (except for the end line, "This is Monsanto") and the Monsanto Mighty Microscope's Monsanto logo was replaced with a logo that says "The Mighty Microscope".