The book is a kind of time machine, with the help of which you can test your erudition and at the same time take a fascinating journey into the history of the endless world of words - from surnames, first names and pseudonyms of people to the names of cultural monuments, types of weapons, precious stones, from the names of cities , rivers, planets to the names of food products, plants, items of clothing. The publication presents questions and tasks of varying complexity for school Olympiads, student competitions, quizzes, scholarly competitions and various educational games. The main thing is that the reader of the book, regardless of his age, profession, life experience and country of residence, is interested in the history of the Russian language and Russian-speaking culture as part of world culture.