Answer
In 1849, Elias Lönnrot, a Finnish physician and language scholar, published the expanded version of the'Kalevala,' a national epic poem of Finland. It is a compilation of Karelian and Finnish folklore and mythology, featuring stories of heroes, battles, and tragic love. Lönnrot's efforts in compiling and editing the'Kalevala' played a significant role in shaping the Finnish national identity and cultural heritage.