Arbor Day is observed in Paraguay every June 19, a date established in 1954 after originally being celebrated on July 14 since its inception in 1904 by Moisés Santiago Bertoni, a Swiss botanist. This holiday is significant in promoting afforestation and forest conservation, particularly in response to the severe deforestation that resulted in the loss of approximately 20,000 square kilometers of forest land between 1958 and 1985. Events and activities on Arbor Day aim to address the dangers of deforestation and to consolidate efforts to combat it. The protection of the Atlantic Forest is emphasized, as it is home to over 300 native tree species, many of which are endangered due to illegal logging. Arbor Day serves as a crucial ecological observance in Paraguay, highlighting the importance of preserving the country's natural heritage.