So what do you know about Russian? Is it very difficult or rude? The Russian language is very sonorous and melodic. Here are the 5 most interesting facts 1. RossRussia remains among the leaders among the countries that conquer space. One of the main conditions for a flight to the International Space Station is knowledge of the Russian language. 2. The longest word in Russian consists of 33 letters! «РЕНГЕНОЭЛЕКТРОКАРДИОГРАФИЧЕСКОГО» 3. The Old Russian language began to form when the speakers of the East Slavic dialects emerged from the general Slavic massif.