author
1879–1928
A Finnish writer remembered today mainly for a bold, provocative work of social and moral criticism. His surviving public record is sparse, but the book points to a fiercely questioning mind interested in ethics, society, and human purpose.

by M. Hahl
M. Hahl (1879–1928) is listed by Project Gutenberg as the author of Lihan evankeliumi: Moraalin arvostelua, a Finnish-language work in philosophy and social criticism. The catalog entry identifies him only as “Hahl, M., 1879–1928,” so even basic biographical details are hard to confirm from readily available sources.
Based on the subjects attached to that book, his writing engages with morality, social history, socialism, and evolution. The work has been described in library and ebook records as a critical examination of accepted moral beliefs and social structures, suggesting an author drawn to big, unsettling questions rather than conventional storytelling.
Because reliable biographical information appears limited online, it is safest to see him as an obscure but intriguing early-20th-century Finnish thinker whose reputation now rests on this one surviving published work.