 In 1997 the Medieval Town of Toruń was designated a UNESCO World Heritage Site and in 2007 Toruń's historic center was added to the list of Seven Wonders of Poland.In 1772 as a result of the First Partition of Poland, Chełmno Land (with the exception of Toruń, annexed in 1793) was seized by the Kingdom of Prussia.Between 1807 and 1815 Chełmno Land was a part of the Polish Duchy of Warsaw and Toruń was even the duchy's temporary capital in April and May of 1809.