Administrative geography of the United Kingdom areas and the statistical territories defined with the modern and systems. This structure was formed by the union agreed between the former sovereign states, the Kingdom of England (which included the conquered principality of Wales) and the Kingdom of Scotland in the Treaty of Union and enacted by the Acts of Union 1707 to form the single Kingdom of Great Britain (1707–1800); followed by the Act of Union 1800, which combined Great Britain with the Kingdom of Ireland to form the United Kingdom of Great Britain and Ireland. The independence of the Irish Free State in 1922, following the partition
Acts of Union 1800 St Andrew's Saltire of Scotland with the St Patrick's Saltire to represent Ireland (it now represents Northern Ireland). Acts of Union 1800 The Acts of Union 1800 (sometimes erroneously referred to as a single Act of Union 1801) were parallel acts of the Parliament of Great Britain and the Parliament of Ireland which united the Kingdom of Great Britain and the Kingdom of Ireland (previously in personal union) to create the United Kingdom of Great Britain and Ireland. The acts came into force on 1 January 1801, and the merged Parliament of the United Kingdom had its first meeting on