The economic activity of a society consists of activities related to the production and consumption of goods and services. Since earliest times, the primary function of organized society has been economic in nature.
The Pentagon is a large office building, with about 6,500,000 sq ft (600,000 m 2), of which 3,700,000 sq ft (340,000 m 2) are used as offices. Approximately 23,000 military and civilian employees and about 3,000 non-defense support personnel work in the Pentagon. It has five sides, five floors above ground, two basement levels, and five ring corridors per floor with a total of 17.5 mi (28.2 km) of corridors.
On January 15, 1943, work was completed on the new headquarters for the U.S. War Department (the modern-day Department of Defense) in Arlington, Virginia. The massive complex, commonly known as the Pentagon, was built to house the nearly 30,000 defense workers tasked with helping America win World War II. With more than 17 miles of corridors, it remains one of the largest office buildings in the world, and has become a symbolâfor better and for worseâof military might.