Latvian language
The Middle dialect is spoken in central and Southwestern Latvia. Kursenieki language, which used to be spoken along Curonian Spit, is closely related to the varieties of middle dialect spoken in Courland. The dialect is divided into the Vidzeme variety, the Curonian variety and the Semigallian variety. The Vidzeme variety and the Semigallian variety are closer to each other than to the Curonian variety, which is more archaic than the other two. There are three intonations in the Middle dialect. In the Semigallian variety, "ŗ" is still used. Standard Latvian is based on the middle dialect.
Russian language in Latvia
In the 1925 census Russians were already reported as the largest minority (10.6%) and Russian was spoken as the family language by 14% of inhabitants. A small percent of Russian speakers were not ethnic Russians and conversely a small percentage of ethnic Russians used another language in family, which was attributed to mixed marriages, living in area with another majority language and, in case of Russian speakers, Russification policies of Russian empire. In 1930 census Russian was reported as family language by 13% of inhabitants.