The evolution of parliamentary government
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Parliamentary government developed gradually as councils originally convened to advise a monarch slowly acquired the power to approve taxation, question ministers, and eventually determine who could govern at all. What began as a purely consultative body became a genuine centre of political authority in its own right over time, reshaping the relationship between ruler and subject.
Key milestones along this path typically included limits placed on royal power, the establishment of regular sittings, and the gradual convention that a government needed the ongoing confidence of parliament to remain in office, rather than simply the personal favour of a reigning monarch alone.
The resulting model, in which an executive is drawn from and accountable to an elected legislature, spread widely and was adapted in different forms across many countries, though the specific balance of power between executive and legislature still varies considerably between them even today, something that becomes clearer with experience.