EstoniaEstonia, officially the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, and to the east by Lake Peipus and Russia. The territory of Estonia consists of the mainland, the larger islands of Saaremaa and Hiiumaa, and over 2,200 other islands and islets on the eastern coast of the Baltic Sea, covering a total area of .
Livonian CrusadeThe Livonian crusade consists of the various military Christianisation campaigns in medieval Livonia – modern Latvia and Estonia – during the Papal-sanctioned Northern Crusades in the 12–13th century. The Livonian crusade was conducted mostly by the Holy Roman Empire and the Kingdom of Denmark. It ended with the creation of Terra Mariana and the Danish duchy of Estonia. The lands on the eastern shores of the Baltic Sea were one of the last parts of Europe to be Christianised.
CuroniansThe Kursenieki are also sometimes known as Curonians. The Curonians or Kurs (kurši; kuršiai; Kuren; Kúrir; кърсь) were a Baltic tribe living on the shores of the Baltic Sea in what are now the western parts of Latvia and Lithuania from the 5th to the 16th centuries, when they merged with other Baltic tribes. They gave their name to the region of Courland (Kurzeme), and they spoke the Curonian language. Curonian lands were conquered by the Livonian Order in 1266 and they eventually merged with other Baltic tribes contributing to the ethnogenesis of Lithuanians and Latvians.
Northern CrusadesThe Northern Crusades or Baltic Crusades were Christian colonization and Christianization campaigns undertaken by Catholic Christian military orders and kingdoms, primarily against the pagan Baltic, Finnic and West Slavic peoples around the southern and eastern shores of the Baltic Sea, and also against Orthodox Christian Slavs (East Slavs). The most notable campaigns were the Livonian and Prussian crusades. Some of these wars were called crusades during the Middle Ages, but others, including most of the Swedish ones, were first dubbed crusades by 19th-century romantic nationalist historians.
SaaremaaSaaremaa ˈsɑːrəmɑː is the largest island in Estonia, measuring . The main island of Saare County, it is located in the Baltic Sea, south of Hiiumaa island and west of Muhu island, and belongs to the West Estonian Archipelago. The capital of the island is Kuressaare, which in January 2018 had 13,276 inhabitants. The whole island had a recorded population in January 2020 of 31,435. In old Scandinavian sources, Saaremaa is called Eysysla and in the Icelandic Sagas Eysýsla (Old Norse: ˈœyˌsyːslɑ), meaning "the district (land) of island".