 The Jednorożec settlement was officially incorporated as a village on August 7, 1650, by a decree from King John II Casimir Vasa, which allowed the beekeepers and farmers, who were already settled there, the official title to their land.The village grew from approximately 40 families in the early 1700s to 80 families in 1781, and Jednorożec then became the second largest town of the parish, after Chorzele.A census in 1827 indicated the town's population was 693 inhabitants housed in 111 homes.