Big Ben (the clock tower now called Elizabeth Tower) was completed and officially finished in 1859.

Quick Scoop: When was Big Ben built?

  • Construction of the tower started in 1843 as part of rebuilding the Palace of Westminster after the 1834 fire.
  • The tower and clock were completed in 1859, which is generally the answer to “when was Big Ben built.”
  • Big Ben (the great bell itself) was cast in 1858 and first rang out in 1859.

So, if you just need the date: Big Ben was built in 1859.

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