Measuring Language Vitality
Languages do not suddenly become extinct, they become moribund as the community of speakers gradually shifts to using other languages. As speakers shift, there are discernible, if subtle, changes in language behavior. These changes in behavior lead to a change of linguistic vitality in the community. There are a variety of systems that have been proposed for measuring the vitality of a language in a community. One of the earliest is GIDS (Graded Intergenerational Disruption Scale) proposed by Joshua Fishman in 1991. A noteworthy publishing milestone in measuring language vitality is an entire issue of Journal of Multilingual and Multicultural Development devoted to the study of ethnolinguistic vitality, Vol. 32.2, 2011, with several authors presenting their own tools for measuring language vitality. A number of other published works on measuring language vitality have been published, prepared by authors with varying situations and applications in mind. These include works by Arienne Dwyer, Martin Ehala, M. Lynne Landweer, and Paul Lewis and Gary Simons.
Read more about this topic: Language Death
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—Henry Brooks Adams (1838–1918)
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