How long did the Long Parliament remain convened?

The Long Parliament, which was convened in 1640, is significant in English history for its extended duration and role in the lead-up to the English Civil War. It originally met from 1640 to 1660, making it an assembly that lasted for 20 years. This period was characterized by ongoing political turmoil and significant legislative developments, including various acts that curtailed the power of the monarchy and set the stage for a republican government. The Long Parliament is particularly known for forcing King Charles I to address grievances that had been building for years, and its eventual dissolution was a crucial factor leading to the establishment of the Commonwealth under Oliver Cromwell. Thus, the choice stating a duration of 20 years accurately reflects the historical timeline and its impact on British governance.