11/ Inclusion of critical sociolinguistic variation such as ethnicity, gender and level of education became commonplace in atlas projects of the early 20th century, with notable works including the Linguistic Atlas of New England (LANE). This was one of the first attempts to map speech in the US ๐บ๐ธ.
Once again, the results, along with all the annotated notes, have been digitalised here: https://linguisticatlasproject.org/LANE
12/ The next major development in linguistic atlases was the introduction of computers to streamline and improve the data collection and cartographic processes.
Early successful examples of this include the Computer Developed Linguistic Atlas of England (CLAE, Viereck and Ramisch).
Below you can see some of the code used to map the linguistic item โanvilโ and its variants, and what this looks like on a modernised, more detailed map.
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