In Sofia, the Institute for Ethnology and Folklore Studies at the Bulgarian Academy of Sciences has presented the "The Bulgarian Roots" calendars for the year 2019. One is dedicated to the 100th anniversary of the Treaty of Neuilly, which cut land with a predominantly Bulgarian population from the map of Bulgaria and buried the national dream of unification of the country. The calendar is in memory of the thousands of refugees and victims from the lost lands. It shows folk costumes from the lost lands and is entitled "Three Sisters - 100 Years Later". The second one is the traditional calendar "Devoiko, mari, hubava", which for the third year is realized with the cooperation of museums in Bulgaria and shows the beauty of authentic costumes from different ethnographic regions of the country.