As early as 1921, attempts were made to manage the Bialowieza Primeval Forest as a nature reserve and in 1932 it was made a national park. Other national parks were created in the 1930s, and administered then by the LP. Poland has 23 of them, the most recent dating from 2001.16 The forest area in national parks grew significantly in the 1980s and 1990s, slightly increased after 2000 and now totals 195 000 ha. Around 20% of the area of national parks is under strict protection.