"Caxi Neljättä Kymmendä Satua Suomalaisiin runoihin käätty 1775" is a collection of Finnish folk tales published in 1775 under the direction of Henrik Akrenius. This book collects 40 fairy tales that have been adapted from oral tradition and written down for the first time. The author successfully combined elements of heroism, folklore and mythology in them, which gives them a special flavor. This collection became an important stage in the development of Finnish literature and played a significant role in preserving and popularizing the unique Finnish culture.