Museum of Science and Industry (Chicago) of Progress event. For years, visitors entered the museum through its original main entrance, but that entrance became no longer large enough to handle an increasing volume of visitors. The newer main entrance is a structure detached from the main museum building, through which visitors descend into an underground area and re-ascend into the main building, similar to the Louvre Pyramid. In 1983, due to increased attendance, the museum started construction of its underground parking lot, located in three underground levels below the front lawn. Construction of the underground parking lot was finished in the 1990s. For over 55 years,
Structure of the Canadian Armed Forces in 1989 It operated 18 schools on five training bases and three schools on other commands' bases. Its strength was around 4.500 active troops, 2,400 of which were instructors. Another 500 military instructors from other commands served as incremental staff. The training system was under the jurisdiction of the Assistant Deputy Minister (Personnel), whose mandate also included the National Defence College, the Military Colleges and the Staff Colleges. The Canadian forces also provided training facilities for allied nations. Structure of the Canadian Armed Forces in 1989 The following article depicts the complete structure of the Canadian Armed Forces in 1989. Following the