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 Structure of the Canadian Armed Forces in 1989 The following article depicts the complete structure of the Canadian Armed Forces in 1989. Following the 1967 Canadian Forces Reorganization Act the Canadian Army, Royal Canadian Navy and Royal Canadian Air Force were amalgamated in 1968 as the Canadian Armed Forces. Since then the Chief of Defence Staff is directly responsible for all services and commands of the Canadian Armed Forces and advises the Canadian Government in all military matters. Policy is developed in the Armed Forces Council, which is made up of the commanders of the functional commands. In 1989 the