The first documented record of the island of Dageida was made by contemporary chroniclers in 1228, at the time when Hiiumaa, along with the rest of Estonia, had been conquered by Germanic Crusaders. In 1254, Hiiumaa was divided between the Bishoprick of Ösel-Wiek and the Livonian branch of the Teutonic order who were also partly acting on behalf of the Hanseatic league The island was part of Swedish Estonia from 15631720, after which it passed to the Russian as part of the Governorate of Estonia, although Dagö's Swedish population kept most of their privileges. Most of the island's previously numerous Swedish speaking population emigrated or were "Estonia" during the period of Imperial Russian rule, although a small minority remains to this day. Estonian Swedes are also known as "aibofolke" (meaning island people in Swedish) or "rannarootslased" (meaning coastal Swedes in Estonian). Transport
Vandu is situated in Undla Parish, Viru County. His father was Hans Strandman, who was a schoolteacher in Undla Parish, Neeruti Mansion. He had also one brother Andres and one sister Anna. Otto was his third child. Hans was a very good father, because first education got Otto by father. In 1886, he went to the municipal school of Rakvere and in 1888 to Emperor Alexander State High School in Tallinn, later High School in Saint Petersburg. In 1896, he graduated as an extern in the Estonian Governorate High School of Tallinn. In 1907, Otto married to Lydia Hindrikson. Their first two childrens, daughter Hella and son Hans died early. Daughter was 4 and son was 3 years old, but their second daughter Lydia died in 1966 after the war. Lydia Hindrikson died on 29 July 1934. Otto worked as a lawyer in Tallinn and Narva, he got a lot of population and he was therefore elected to a member of Tallinn city council from 1904 to 1905. He was