Problem: Could you please help me to revise the paragraphs?
The State House bell rang in the tower of the Pennsylvania State House. Today, we call that building Independence Hall. Now known as the Liberty Bell. Speaker of the Pennsylvania Assembly Isaac Norris first ordered a bell for the bell tower in 1751 from the Whitechapel Foundry in London. That bell cracked on the first test ring, local metalworkers John Pass and John Stow melted down that bell, they cast a new one in Philadelphia. It's this bell that would ring. It would right to call lawmakers to their meetings. It would ring to call the townspeople together to hear the reading of the news. It's not until the 1830's that the old State House bell would begin to take on significance as a symbol of liberty.
No one recorded when or why the Liberty Bell first cracked. The most likely explanation is that a narrow split developed in the early 1840's. This was after nearly 90 years of hard use. The city decided to repair the bell prior to George Washington's birthday holiday (February 23). This was in 1846. Metal workers widened the thin crack. To prevent its farther spread and restore the tone of the bell. They used a technique called "stop drilling". The wide "crack" in the Liberty Bell is actually the repair job. Look carefully and you'll see over 40 drill bit marks in that wide "crack," but the repair was not successful, the Public Ledger newspaper reported that the repair failed when another fissure developed. This second crack runs from the abbreviation for "Philadelphia" up through the word "Liberty." Silenced the bell forever. No one living today has heard the bell ring freely with its clapper.