01 January - Great Britain and Ireland were formally united to create the United Kingdom

 

On 01 January 1801 the Kingdom of Great Britain and the Kingdom of Ireland were formally united to create the United Kingdom of Great Britain and Ireland. The union was established through the Acts of Union, which were passed by both the British and Irish Parliaments. This legislative merger brought together the two kingdoms into a single political entity.

The Acts of Union of 1800, which came into effect on January 1, 1801, had been preceded by negotiations and debates aimed at addressing issues of governance, representation, and economic concerns. The result was the creation of the United Kingdom of Great Britain and Ireland, a political union that lasted until the establishment of the present-day United Kingdom of Great Britain and Northern Ireland in 1922, following the partition of Ireland.