The Russian language unites multinational Russia. This was facilitated at one time by Princess Ekaterina Romanovna Dashkova. Friend and associate of Catherine the Great. Representative of cultural diplomacy abroad. Thanks to her, the letter “Ё” (Yo) and the Dictionary of the Russian Academy, the First Explanatory Dictionary of the Russian language for 43,257 words, appeared. A cartoon about the letter "Yo" was created by children aged 8-13, who study at the "Cartoons" studio (Ivanteevka).