History of the Welsh language
Denbighshire was the only other county where a majority could still speak Welsh, here, 51.0% could speak Welsh and 94.0% could speak English. As for larger urban areas, Aberdare was the only one where a majority could still speak Welsh, here 59.0% could speak Welsh while 95.4% could speak English. In Cardiff, Wales' capital, 5.2% of people could speak Welsh, while 99.7% of people could speak English. 
At a district level, Llanfyrnach rural district in Pembrokeshire had the highest percentage of Welsh speakers; at 97.5%, while Penllyn rural district in Merioneth had the highest percentage of Welsh monoglots; at 57.3%. Bethesda urban district in Carnarvonshire was the most Welsh speaking urban district in Wales; 96.6% of the district's population could speak Welsh.
Denmark
The tribal Danes came from the east Danish islands (Zealand) and Scania and spoke an early form of North Germanic. Historians believe that before their arrival, most of Jutland and the nearest islands were settled by tribal Jutes. The Jutes migrated to Great Britain eventually, some as mercenaries by Brythonic King Vortigern, and were granted the south-eastern territories of Kent, the Isle of Wight and other areas, where they settled. They were later absorbed or ethnically cleansed by the invading Angles and Saxons, who formed the Anglo-Saxons. The remaining Jutish population in Jutland assimilated in with the settling Danes.