B: the Jews had started a revolt against Roman rule
Tourism - minority languages have become part of the tourist landscape because tourists want to see something authentic.
Nationalism - some independent states reestablish the indigenous language as a statement of political and cultural independence
.
Modern Electronic communications - rise of mass personal communications tools such as the telephone, Internet can make minority groups to resist the power of mass media and maintain their language.
Human speech; nonspeech sounds
It was developed to relieve the symptoms of B- Seasonal Affective Disorder.