February 21 is International Mother Language Day (according to a 1999 UNESCO proclamation) and Language Martyrs' Day in Bangladesh. These holidays commemorate the people who were killed by police in Dhaka on February 21, 1952, while demonstrating for the recognition of Bengali as an official language in what was then East Pakistan. So today would be a good day to ask your government to acknowledge your favourite language.
(When I was in high school, a significant portion of the student body dressed in black on February 21. They weren't commemorating the Bengali language martyrs, though; they were commemorating the assassination of Malcolm X, which happened on this day in 1965.)