International Mother Language Day, proclaimed by the UNESCO General Conference on November 17, 1999, has been celebrated annually since 2000 on February 21with the aim to promote linguistic and cultural diversity and multilingualism.

According to the UN, there are about 7,000 languages in the world, of which over 2,500 are endangered. All steps to promote mother tongues foster solidarity based on mutual understanding, tolerance and dialogue.

As part of the event, AIS organized a whole journey through the regions of the Russian Federation, which includes about 194 ethnic groups. Improvised school airlines traveled with students to the following destinations: Khanty-Mansiysk, Udmurtia, Mordovia, Chuvashia, Karelia, Jewish autonomous district, Tatarstan, Moscow, and Yakutia.

Upon arrival to the subject, students learned facts about the region from a representative of the folks - a famous scientist, conducted scientific experiments.

So, for example, the representative of Tatarstan was the famous chemist Alexander Mikhailovich Butlerov. Students conducted an experiment on paper chromatography. Using this simple and accessible demonstration, students learned about the principles of chromatography and how it is used in analytical chemistry to separate and purify mixtures of substances.
The results of the trip can definitely be considered cultural enlightenment, initiation into linguistics, and an introduction to the geography of the country.