The Liberty Bell was first rung publicly on July 8, 1776, to summon citizens for the first public reading of the Declaration of Independence (adopted July 4).
The identity of the person who physically rang it. No contemporary account names the ringer. Candidates include:
Developed gradually (1840s); final expansion on Washington's Birthday 1846 rendered it unringable. The bell became an abolitionist symbol ("Proclaim Liberty Throughout All the Land") before the Civil War.