Hiis Sites in the Research History of Estonian Sacred Places

The article gives an overview of the history of research of holy places which are called hiis in Estonia from the end of the 18th to the beginning of the 21st century. The emphasis of the study is on academic treatments on the subject, and the article analyses the main research problems. The concept of hiis has been discussed to a lesser degree in the context of national ideology and identity, which nevertheless has left an important mark on academic studies.