For how many years did the Puritans rule England under the Commonwealth?

The Puritans ruled England under the Commonwealth for a period of approximately 20 years, which aligns with the chosen answer. This era began with the English Civil War in 1642, leading to the execution of King Charles I in 1649. Following this, Oliver Cromwell emerged as a key figure, eventually becoming the Lord Protector in 1653. The Commonwealth officially lasted until the Restoration of the monarchy in 1660 when Charles II was invited back to the throne. This timeframe clearly marks the interregnum period when the Puritan government was in control, justifying the 20-year duration. The context of political upheaval and the removal of the monarchy during this time is crucial for understanding the historical significance of Puritan rule in England.