The town was founded in 1961. From 1969 to 1994, it was called
Uglegorsk and was established in order to serve the nearby
ICBM base of the
Soviet Armed Forces which was code-named
Svobodny-18. The name was given after another settlement called Svobodny which lies south of it. The closed status was assigned by the
Decree of the
Presidium of the
Supreme Soviet of the RSFSR of October 19, 1965. In 1994 the entire complex was renamed to Uglegorsk (). In April 2013, President Vladimir Putin proposed to rename a town nearer to the Cosmodrome in honor of the founder of theoretical astronautics
Konstantin Tsiolkovsky. Later it was decided to assign this name to Uglegorsk. In March 2014 the settlement held a
public hearing where the majority of participants were in favor of the renaming. In June 2014 the Council of People's Deputies of Uglegorsk approved the name change. In September 2015 the deputies of the
Legislative Assembly of Amur Oblast adopted a law to change the status of the settlement of Uglegorsk and transform it into a city without changing the established administrative borders. The official documents to rename the city were sent for examination to the
Federal Service for State Registration, Cadastre and Cartography (Rosreestr). On December 23 the
State Duma, the
lower house of the
Russian Parliament voted in favour of a federal law on the renaming of the town, and on December 30 President Putin
signed it into law, thus formalizing the name changing. On November 30, 2015, one of the streets of the town was renamed "3rd street of the Builders" () as a tribute to the creativity of
Eldar Ryazanov. ==Administrative and municipal status==