unitary authorities: Blaenau Gwent; Bridgend; Caerphilly; Cardiff;
Carmarthenshire; Ceredigion; Conwy; Denbighshire; Flintshire;
Gwynedd; Isle of Anglesey; Merthyr Tydfil; Monmouthshire; Neath Port
Talbot; Newport; Pembrokeshire; Powys; Rhondda, Cynon, Taff;
Swansea; The Vale of Glamorgan; Torfaen; Wrexham
Dependent areas:
Anguilla, Bermuda, British Indian Ocean Territory, British Virgin
Islands, Cayman Islands, Falkland Islands, Gibraltar, Montserrat,
Pitcairn Islands, Saint Helena, South Georgia and the South Sandwich
Islands, Turks and Caicos Islands
Independence:
12 April 1927 (Royal and Parliamentary Titles Act establishes current name of the United Kingdom of Great Britain and Northern Ireland); notable earlier dates: 927 (minor English kingdoms united); 3 March 1284 (enactment of the Statute of Rhuddlan uniting England and Wales); 1536 (Act of Union formally incorporates England and Wales); 1 May 1707 (Acts of Union formally unite England and Scotland as Great Britain); 1 January 1801 (Acts of Union formally unite Great Britain and Ireland as the United Kingdom of Great Britain and Ireland); 6 December 1921 (Anglo-Irish Treaty formalizes partition of Ireland; six counties remain part of the United Kingdom as Northern Ireland)
National holiday:
the UK does not celebrate one particular national holiday
Constitution:
unwritten; partly statutes, partly common law and practice
Legal system: