This is a chronicle of the use of the concept of "White Russia," and not a chronicle of Belarus. The principle of building the book is as follows: year of mention - source verification - explanation. Genuine documents are considered, and not selectively, as is customary among professional historians, but all available. As a result, the following were discovered: direct falsification of documents; distortion of their meaning; substitution of concepts. Identified documents that historians do not want to quote. After reading the book, readers will understand that "only Smolensk was called White Russia for a long time, that the term "Belarusian" in the 16th - 17th centuries. was religious, not ethnic. In the office work of Muscovy, the "Belarusian letter" was used (through one "c"), which is not related to the modern Belarusian language.