sentences:  On 1 January 1964, Sandtorg was merged with the neighboring municipalities of Harstad and Trondenes to form the new Harstad Municipality.Bjarne Berg-Sæther (born 1919) was a significant leader in Sandtorg during the 20th century.He was the mayor of Sandtorg from 1948 until 1964 when it was merged with Harstad.