The document provides historical context on the development of Tyneside English. It discusses how the language was influenced by Germanic tribes settling in the 5th century AD and the isolation of Northumberland from the Norman conquest. Scottish language contact also significantly impacted Tyneside English. The building of Hadrian's Wall helped separate the language from Celtic Scottish varieties. Recent studies have examined the declining use of words like "lass" compared to "lad" and looked at vowel variants among different age, gender, and social groups in Newcastle. Historical invasions left the Northeast linguistically isolated, allowing words and phrases to survive into modern Tyneside English that are no longer used elsewhere in Britain.