The full name of the holiday – Day of Nature Reserves and National Parks. It is an official holiday that is celebrated due to initiative of a number of ecological organizations. This date is celebrated annually on January 11 (The Order for the creation of the first Barguzinsky reserve on the territory of the Republic of Buryatia, located in Russia, signed December 29, 1916, according to the new style – January 11). It was the State Reserve, whose goal was to preserve the population of Barguzin sable and other animals on the lake Baikal. The First Day of Nature Reserves was celebrated in 1997 at the initiative of the Wildlife Conservation Center and WWF. First reserve in Ukraine was established in 1886 by Ukrainian naturalist Vladimir Dzieduszyckis. This was the first reserve in Europe, which was a natural reserve with area of 22.4 hectares near the village Penyaky (now Brody district, Lviv region) and was named “Memorial Pieniacka”.