12 is fulfilled in March 160 years since the birthday of Volodymyr Ivanovich Vernadskyi (1863–1945), Ukrainian scientist-encyclopedist, natural scientist, mineralogist, geochemist, organizer and first president of the Ukrainian Academy of Sciences, founder of the National Library of Ukraine. Employees of the Information and Bibliography Department have prepared a web reference, dedicated to this date. You can familiarize yourself with this material at the link.