General view of an exhibit panel on the use of Plexiglas at the Expo 67 World's Fair in Montreal. The panel, which was exhibited at the 1967 Rohm and Haas Company stockholders' meeting, particularly highlights the use of Plexiglas to glaze the giant geodesic dome at the center of the United States Pavilion.

The Rohm and Haas Company was founded in 1907 in Esslingen, Germany through the partnership of German chemist Otto Röhm and German businessman Otto Haas. In 1933, Röhm's experiments with the polymerization of methyl methacrylate led to the creation of a clear, solid plastic sheet, which he trademarked Plexiglas. During World War II, the demand for Plexiglas, which both Allied and Axis forces used for submarine periscopes and aircraft windshields, canopies, and gun turrets, helped transform Rohm and Haas into a major chemical firm.