Cardiff
Language

Cardiff has a chequered linguistic history with Welsh, English, Latin, Norse and Norman French preponderant at different times. Welsh was the majority language in Cardiff from the 13th century until the city's explosive growth in the Victorian era. As late as 1850, five of the 12 Anglican churches within the current city boundaries conducted their services exclusively in Welsh, while only two worshipped exclusively in English. By 1891, the percentage of Welsh speakers had fallen to 27.9% and only Lisvane, Llanedeyrn and Creigiau remained as majority Welsh-speaking communities. The Welsh language became grouped around a small cluster of chapels and churches, the most notable of which is Tabernacl in the city centre, one of four UK churches chosen to hold official services to commemorate the new millennium.

The city's first Welsh-language school (Ysgol Gymraeg Bryntaf) was established in the 1950s. Welsh has since regained ground. Aided by Welsh-medium education and migration from other parts of Wales, there are now many more Welsh speakers: their numbers doubled between the 1991 and 2011 censuses, from 18,071 (6.6%) to 36,735 (11.1%) residents aged three years and above. The LSOA (Lower Layer Super Output Area) with the highest percentage of Welsh speakers in the city centre is found in Canton, at 25.5%. The LSOA with the highest percentage of Welsh speakers in the whole of Cardiff is Whitchurch, at 26%.

Cardiff City Council adopted a five-year Welsh-language strategy in 2017, aimed at increasing the number of Welsh speakers (aged 3+) in Cardiff by 15.9%, from 36,735 in 2011 to 42,584 residents by the 2021 Census. The ONS estimated that in December 2020, 89,900 (24.8%) of Cardiff's population could speak Welsh.

In addition to English and Welsh, the diversity of Cardiff's population (including foreign students) means that many other languages are spoken. One study has found that Cardiff has speakers of at least 94 languages, with Somali, Urdu, Bengali and Arabic being the most commonly spoken foreign ones.

The modern Cardiff accent is distinct from that of nearby South Wales Valleys. It is marked primarily by:
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