Taara (variations of the name include Tooru, Tharapita and Tarapitha) is a god in Estonian mythology.
The Chronicle of Henry of Livonia mentions Tharapita as the superior god of Oeselians (inhabitants of Saaremaa island), also well known to Vironian tribes in northern Estonia. According to the chronicle, when the crusaders invaded Vironia in 1220, there was a beautiful wooded hill in Vironia, where locals believe Oeselian god Tharapita was born and from which he flew to Saaremaa. The hill is believed to be the Ebavere Hill (Ebavere mägi) in modern Lääne-Viru County.
The name Tharapita has been interpreted as "Taara, help!" (Taara, a(v)ita! in Estonian) and "Taara's thunderbolt" (Taara pikne).
Tharapita also inspired an Estonian neopagan movement, known as taaralased or taarausulised. In the middle of the 19th century, Taara became popular in the national movement, as an anti-German and anti-Lutheran symbol, and creators of Estonian pseudomythology made Taara the supreme god of the Estonian pantheon. From that period, Estonia's second-biggest city Tartu was poetically called Taaralinn ("city of Taara").
Taara was known by the Tavastian tribe of Finland. At an old cult place now known as Laurin Lähde (Lauri's Fountain) in the county of Janakkala, Tavastians worshipped Taara there as late as the 18th century and the church had to close the place.
Tharapita may have been known among the Slavs of the island of Rügen, where Danish crusaders destroyed a pagan idol named Turupit in 1168.
The story of Taara's flight from Vironia to Saaremaa has been associated with a major meteor disaster that formed Lake Kaali in Saaremaa. One proponent of theories about the meteor and its consequences was historian Lennart Meri, the president of Estonia from 1992 to 2001, who wrote several books about the subject.
Variations similar to the name "Thor" are known to many peoples who speak Uralic languages. The Khants have a god named Torum, the Samis have Turms, and the Samoyeds have Tere. Finnish bishop Mikael Agricola mentions in 1551 a war god called Turisas, although this is more likely to refer to Thurisas; the Finns had also a god of harvest, luck and success called Tuuri. These deities are associated with the hypothetical proto-Uralic-language word meaning "high".
According to several medieval chronicles, Estonians did not work on Thursdays (days of Thor) and Thursday nights were called "evenings of Tooru". Some sources say Estonians used to gather in holy woods (Hiis) on Thursday evenings, where a bagpipe player sat on a stone and played while people danced and sang until the dawn.
Read more about Tharapita: Mentions of Tharapita in Henry's Chronicle of Livonia