On September 17-20, 2024, the 21st General Meeting of Polish Historians took place in Bialystok, during which doctoral student of the UwS Doctoral School, Marcin Krasuski, M.Sc., presented his research results on “The fertility of rural families in the Kingdom of Poland in the years 1815-1867 on the example of the parishes of the Lusk region” as part of the poster session of young scientists.