Nature Photography Day is celebrated on June 15. The origins of this day are to be found in ancient times. The importance of the account of nature and natural history is seen in 79 AD already: Pliny the Younger narrated the eruption of Mount Vesuvius in Pompeii. Also, naturalists provided drawings of medicinal plants. That is the case for Dioscorides and his prominent book De materia medica, or Matthaeus Platearius’ Circa Instans.