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The research group Dialectology and Diachrony is committed to investigating spatial and historical linguistic variation under various theoretical perspectives and covering different areas of grammar. Its general goal is to broaden the knowledge on the Portuguese language (and the universal properties of natural languages) by adopting an overall comparative perspective for linguistic analysis and not confining the focus of linguistic inquiry to the standard (contemporary) varieties. The group develops and makes available online linguistic resources specifically conceived to support the description and understanding of geographical and historical dialects that go beyond the researcher’s linguistic competence (namely, digital critical editions, annotated corpora, lexical databases and linguistic atlases).

The group assembles three research teams that work in close articulation, sharing resources, technical competences and scientific concerns:

ATLAS – Leads research in Geolinguistics in the domains of Phonology, Morphology and the Lexico\n. The research team has generated an extensive sound archive by conducting field work mostly throughout the last quarter of the 20th century and has specialized on the production of linguistic atlases and lexical databases.

CARDS/FLY – Leads research in Historical (linguistic) Variation with a particular interest on Discourse Analysis and Historical Pragmatics. A central aim of the research team is the production of electronic editions of texts displaying everyday writing in Modern and Contemporary times.

CORDIAL – Leads research in Comparative (generative) Linguistics focused on Dialect Syntax and Diachronic Syntax. The research team is concerned with showing how the study of (spatial and historical) variation contributes towards a better understanding of the cross-linguistic properties of natural languages and engaged into productively handling the syntactic annotation of corpora.