In response to the British Parliament's enactment of the so-called Intolerable Acts, representatives from twelve of the Thirteen Colonies convened the First Continental Congress at Carpenters' Hall in Philadelphia.

The Parliament of the United Kingdom of Great Britain and Northern Ireland is the supreme legislative body of the United Kingdom, and may also legislate for the Crown Dependencies and the British Overseas Territories. Since 1999, varying degrees of powers have been devolved to the national parliaments of Northern Ireland, Scotland, and Wales. Each devolved parliament has different devolved powers, with Scotland being the most powerful amongst the three devolved parliaments. The central UK Parliament retains the power to legislate in reserved matters, including broadcasting, defence, and currency.