Similarly, the custom that the Prime Minister is always a Member of the Lower House, rather than the Upper one, did not evolve until the twentieth century.

The Speaker's official role was to moderate debate, make rulings on procedure, announce the results of votes, and the like.

The Speaker decided who may speak and had the powers to discipline members who break the procedures of the house.

The title was first recorded in 1377 to describe the role of Thomas de Hungerford in the Parliament of England.

The constituencies which elected members in England and Wales remained unchanged throughout the existence of the Parliament of Great Britain.