"Diary, 1900." is a literary masterpiece that immerses the reader in the atmosphere of the beginning of the 20th century. The author of the book, based on personal records of that year, tells about the events that happened in the life of the main character, his thoughts, experiences and memories. This work is not only a concise description of events, but also a source of discovery for the reader about how people lived and felt in the last century. "Diary, 1900." is a book that not only preserves history, but also helps the reader feel the spirit of that time and perceive it more deeply.