Editing Islwyn (section)

==History==
The borough was formed in 1974 as a local government [[Districts of Wales|district]] of [[Gwent (county)|Gwent]]. It covered the whole area of three former districts and part of a fourth, which were all abolished at the same time:
*[[Abercarn]] [[Urban district (Great Britain and Ireland)|Urban District]]
*[[Bedwellty]] Urban District - the [[Argoed, Caerphilly|Argoed]], [[Blackwood, Caerphilly|Blackwood]], [[Cefn Fforest]], and [[Pengam]] wards only (rest became [[New Tredegar]] community in [[Rhymney Valley (district)|Rhymney Valley]])
*[[Mynyddislwyn]] Urban District
*[[Risca]] Urban District
All the constituent parts of Islwyn had previously been in the [[administrative county]] of [[Monmouthshire (historic)|Monmouthshire]] prior to the reforms. [[Gwent County Council]] provided county-level services to the new borough.<ref>{{cite legislation UK|type=act|act=Local Government Act 1972|year=1972|chapter=70|accessdate=6 October 2022}}</ref><ref>{{cite legislation UK|type=si|si=The Districts in Wales (Names) Order 1973|year=1973|number=34|accessdate=4 October 2022}}</ref>

The district was named after local poet [[William Thomas (Islwyn)|William Thomas]] (1832–1878), who used the [[pen name|bardic name]] 'Islwyn'.<ref>{{cite news|title=A Borough for the Bard?|newspaper=Gwent Gazette|date=5 May 1972|page=11|author=Brinley Evans (Arael)}}</ref> Islwyn (meaning "below the grove") was part of the name of the ancient parish of Mynyddislwyn which covered its area. This was shown in the borough's [[coat of arms]] which represented a mountain below a grove of oak trees.<ref>{{cite web|url=http://www.civicheraldry.co.uk/wales_7496.html|title=Wales 1974 to 1996 (obsolete)|work=Civic Heraldry of England and Wales|accessdate=12 May 2025}}</ref>

The borough was abolished in 1996, when its area became part of [[Caerphilly County Borough]].<ref name=Arch/>

Islwyn continues as a [[Islwyn (UK Parliament constituency)|Westminster constituency]] and a [[Islwyn (Senedd constituency)|Senedd constituency]]. The Westminster constituency's best-known MP was [[Neil Kinnock]].