evidence: The Nakhichevan Autonomous Soviet Socialist Republic,[a] abbreviated as Nakhichevan ASSR[b] was an autonomous republic within the Azerbaijan SSR, itself a republic within the Soviet Union. It was formed on 16 March 1921 and became a part of the Azerbaijan SSR proper on 9 February 1924. [...] Vladimir Lenin, although welcoming this act of "great Soviet fraternity" where "boundaries had no meaning among the family of Soviet peoples," did not agree with the motion and instead called for the people of Nakhichevan to be consulted in a referendum. According to the formal figures of this referendum, held at the beginning of 1921, 90% of Nakhichevan's population wanted to be included in the Azerbaijan SSR "with the rights of an autonomous republic."[10] The decision to make Nakhichevan a part of modern-day Azerbaijan was cemented 16 March 1921 in the Treaty of Moscow between Bolshevist Russia and Turkey.[12] The agreement between Soviet Russia and Turkey also called for attachment of the former Sharur-Daralagez uyezd (which had a solid Azeri majority) to Nakhichevan, thus allowing Turkey to share a border with the Azerbaijan SSR. This deal was reaffirmed on 23 October, in the Treaty of Kars. Article V of the treaty stated the following: [...] On 19 November 1990, it became the Nakhichevan Autonomous Republic within the Republic of Azerbaijan.