The commonly cited estimate of 25,000 Star Destroyers overall or their equivalent is not out of the ballpark, and deserves some consideration as well. If we assume a practical service life of 5 years during constant warfare and a fleet of 5,000, we get a typical production rate of 1,000 ISDs per year.
The Liberty Bell today, sits in the Pennsylvania State House in Philadelphia, Pennsylvania. Although the bell resides in the United States, its origin and development took place in London, England where it was first cast or molded in 1752.
The Liberty Bell, first cast in 1752, was commissioned to be the bell for the Pennsylvania Statehouse, now called Independence Hall. Later, this was the building in which the Declaration of Independence (1776) and United States Constitution (1787) were debated and signed.he Liberty Bell Center, built to the west of the Pavilion, opened on October 9, 2003. Initially, the vacant Pavilion was repurposed as a security building in which visitors headed to Independence Hall and the Liberty Bell Center were screened.