Doctor, educator, politician Mstislav Aleksandrovich Kulaev (on the 150th anniversary of his birth)

The article describes the medical, scientific, organizational, as well as political activities of the outstanding doctor of the Tatar and Bashkir ASSR Mstislav Aleksandrovich (Mukhametkhan Sakhipgareevich) Kulaev. His name went down in history because of the signing of the Agreement of the Central Soviet Power with the Bashkir Government on Soviet Autonomous Bashkiria on March 20, 1919 in Moscow. The relevance of this study is due to the fact that February 7, 2023 marked the 150th anniversary of the birth of M.A. Kulaev, and in 2019 the Republic of Bashkortostan celebrated the 100th anniversary of its formation. The article publishes for the first time previously unknown facts concerning Essays on the diagnosis of pulmonary tuberculosis, the author of which is M.A. Kulaev, who collected material during his work with tuberculosis patients. In addition, the authors were able to personally meet with the heirs of the famous Kazan doctor and draw many new, unknown facts from the biography of this outstanding healthcare figure in the Tatar and Bashkir Autonomous Soviet Socialist Republics.