Global:
* International Mother Language Day (February 21): This day is dedicated to promoting linguistic and cultural diversity and multilingualism.
* International Translation Day (September 30): This day celebrates the work of translators and the importance of translation in bridging cultural divides.
Regional or National:
* National Language Week in India (September 14-20): Celebrates the rich linguistic diversity of India and promotes the use of Hindi.
* National Language Week in the Philippines (August 13-19): Celebrates Filipino language and culture.
* National Language Week in South Africa (May 2-8): Focuses on promoting the use of all 11 official languages of South Africa.
* National French Language Week in France (March 20-26): Celebrates French language and culture.
* National Spanish Language Week (April 23-29) in various countries: Promotes Spanish language and culture.
* Week of the Italian Language (October): Celebrates Italian language and culture.
Language-Specific:
* Esperanto Week: Celebrated annually in July, focusing on the promotion of the Esperanto language.
Other:
* European Day of Languages (September 26): Promotes language learning and diversity within Europe.
This is just a small sample, and many other language weeks and celebrations occur throughout the year. To find specific dates and information, you can search online for "language weeks" or "[language name] week" for the specific language you are interested in.