Treaty on the Creation of the USSR on 30 December 1922 by a conference of delegations from the Russian SFSR, the Transcaucasian SFSR, the Ukrainian SSR and the Byelorussian SSR. The Treaty and the Declaration were confirmed by the 1st Congress of Soviets of the USSR and signed by heads of delegations Mikhail Kalinin, Mikhail Tskhakaya, Mikhail Frunze and Grigory Petrovsky, Aleksandr Chervyakov respectively on December 30, 1922. The treaty provided flexibility to admit new members. Therefore, by 1940 the Soviet Union grew from the founding four republics to 15 republics. On 8 December 1991, Russian, Ukrainian and Belarusian Presidents signed the Belavezha Accords. The agreement declared
Unified Sports Classification System of the USSR and Russia sports ranks and titles, for all sports, cultivated in the USSR. As of the 1970s, there were following ranks for athletes of the USSR (listed in descending order of value): Each of these titles was awarded only for results on the official competitions. Athletes who qualified for the rank were awarded a badge with serial number. This system was popular among Soviet satellite states and was used in Bulgaria, Czechoslovakia, East Germany, Poland, and Romania until the breakup of the USSR in 1991. Russia continued the system, and former Soviet republics Belarus, Moldova, Kazakhstan, Kyrgyzstan, Tajikistan, Ukraine and Uzbekistan also