Chronological overview

  • 1912: Appeals in newspapers and magazines to recruit collectors

  • Sending out questionnaires (and instructions) to these collectors, who in turn conducted surveys with the local dialect-competent population

  • From 1912: very heterogeneous compilation of excerpts from dissertations, monographs, dictionaries, grammars, collections, historical sources and dialect literature

  • 1913-1933: Main surveys (so-called “large questionnaires”)

  • 1927-1937: follow-up surveys (“supplementary questionnaires”)

  • 1927-1990: field research trips (small questionnaire, until 1965) and further questionnaire surveys (until 1990)