The First Parliament of the Kingdom of Great Britain convenes.

The first Parliament of the Kingdom of Great Britain was established in 1707 after the merger of the Kingdom of England and the Kingdom of Scotland. It was in fact the 4th and last session of the 2nd Parliament of Queen Anne suitably renamed: no fresh elections were held in England or in Wales, and the existing members of the House of Commons of England sat as members of the new House of Commons of Great Britain. In Scotland, prior to the union coming into effect, the Scottish Parliament appointed sixteen peers and 45 Members of Parliaments to join their English counterparts at Westminster.

Great Britain, also known as the Kingdom of Great Britain, was a sovereign state in Western Europe from 1707 to the end of 1800. The state was created by the 1706 Treaty of Union and ratified by the Acts of Union 1707, which united the Kingdom of England and the Kingdom of Scotland to form a single kingdom encompassing the whole island of Great Britain and its outlying islands, with the exception of the Isle of Man and the Channel Islands. The unitary state was governed by a single parliament at the Palace of Westminster, but distinct legal systems—English law and Scots law—remained in use, as did distinct educational systems and religious institutions, namely the Church of England and the Church of Scotland remaining as the national churches of England and Scotland respectively.