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 Swedish Armed Forces in 1989 Structure of the Swedish Armed Forces in 1989 The following article depicts the structure of the Swedish Armed Forces in 1989 by service branch. In wartime units would come under six multi-service military area commands. These area commands, as well as their wartime structure, can be found in their respective articles listed at Swedish military areas. The article was created by combining the Swedish government's 1987 request to parliament to approve a new defense structure and the adjoined five year defense plan (Link), the same request to parliament 1992, which listed the changes undertaken between 1988 and 1992, the various