The Liberty Bell is one of the iconic American historical artifacts. It was commissioned in 1751 to commemorate William Penn's Charter of Privileges (1701), which was the first constitution of Pennsylvania colony. It hung in the steeple of the Pennsylvania State House (what is now called Independence Hall; this is where colonial delegates debated and signed the Declaration of Independence and the Constitution) and is now on display inside the Liberty Bell Center at Independence National Historical Park.
A verse from Leviticus 25:10 is inscribed on the bell: Proclaim liberty throughout all the land unto all inhabitants thereof. The crack in the bell appeared in the 1830s, but the quality of the bell was suspect from its earliest day. After being recast, the colony ordered a second bell but decided to keep the original. That second bell was sold to a Philadelphia Catholic church in 1828. After an anti-Catholic mob destroyed that church and damaged the second bell in 1844, that bell was recast and is now the property of Villanova University.