Question: When was Michail Gorbachev elected?
About the article "Dissolution of the Soviet Union", section "Soviet Union centre – the new General Secretary".

Candidate passages:
On 15 March 1990, Gorbachev was elected as the first executive President of the Soviet Union with 59% of the Deputies' votes.
He was the sole candidate on the ballot.
The Congress met for the first time on 25 May in order to elect representatives from Congress to sit on the Supreme Soviet of the Soviet Union.
Nonetheless, the Congress posed problems for Gorbachev: its sessions were televised, airing more criticism and encouraging people to expect ever more rapid reform.
In the elections, many Party candidates were defeated.
Furthermore, Boris Yeltsin was elected in Moscow and returned to political prominence to become an increasingly vocal critic of Gorbachev.
Following American practice, Gorbachev chose a Vice President.
However, when first Shevardnadze, then Kazakh leader Nursultan Nazarbayev, turned it down, Gorbachev chose Gennady Yanayev, the head of the All-Union Central Council of Trade Unions and a known hardliner.
This decision would come back to haunt Gorbachev later. 
of Tyumenskaya oblast’ segodnya in chronological order  Michail Semenovich Gorbachev (1998–2001)  Raisa Petrovna Kovdenko (2001–2002)  Alexander Nickolaevich Skorbenko (from February, 7th, 2002)  
He studied law at the National and Kapodistrian University of Athens and was awarded a Ph.D in Law in 1934.
In 1937 he was appointed Associate Professor of Administrative Law at Athens University and in 1943 became a Professor at the Panteion University, where he served as rector from 1951 to 1958.
From 1951 to 1953, he was President of the Ellinikí Radiofonía Tileórasi.
In 1952 he served as caretaker Minister to the Prime Minister's Office and Labour Minister in the Government of Dimitrios Kiousopoulos and in 1958 he was Minister for the Presidency in the Government of Konstantinos Georgakopoulos.
In 1929, he was accepted into the Council of State, having come first in the entrance examination, and served as President of this body between 1966 and 1969.
In the Greek legislative election, 1974, Michail Stasinopoulos became a Member of Parliament in the nationwide ticket of the New Democracy party.
When a referendum (8 December 1974) established Greece as a Republic, Michail Stasinopoulos was elected as interim President of the Republic by a majority in the Hellenic Parliament.
He served as Head of State from 18 December 1974 until 20 June 1975, that is, until the final shaping of the new regime by the revisionary national assembly.
Michail Stasinopoulos died on 31 October 2002. 
  "Move Over" (Janis Joplin)  "Super Freak Family" (Hagen, Billy Liesegang)  "Love Heart Attack" (Junger Junior, Dawson Miller)  "Hold Me" (Traditional, Billy Liesegang)  "Vegas" (Doc Pomus, Mort Shuman)  "Live on Mars" (Hagen, Zeus B.
Held)  "Dope Sucks" (Herman Brood)  "Only Seventeen" (Billy Liesegang, Dawson Miller, Zeus B.
Held, Hagen)  "Where's the Party" (Hagen, Bill Liesegang)  "Michail, Michail (Gorbachev Rap)" (Wolf Biermann)  "Ave Maria" (Franz Schubert, arranged by Hagen, Zeus B.
Held) Track listing.
"Live on Mars" is sung in Sanskrit.
"Michail Michail" and "Ave Maria" are sung in German. 
Ligachev was First Secretary of the Novosibirsk Komsomol, before becoming Deputy Chairman of the Novosibirsk Soviet, and then Secretary of the Novosibirsk Obkom between 1959 and 1961.
Ligachev's first major post was attained in 1961, when he began working in the CPSU Central Committee.
In 1965, he became First Secretary of the Party in Tomsk, Siberia.
He was to hold this position until 1983, when he was discovered by Yuri Andropov and made head of the Party Organization Department and a Secretary of the Central Committee.
In 1966, Ligachev was elected a candidate member of the Central Committee, and ten years later in 1976 he was promoted to a full member.
When Mikhail Gorbachev became General Secretary in 1985, Ligachev was promoted to become a Secretary of higher status, and was generally viewed as one of Gorbachev’s primary allies: he had helped organize a pro-Gorbachev faction in hope of having Gorbachev succeed Andropov in 1984, although this attempt failed (instead, Konstantin Chernenko was chosen as a stop-gap candidate).
Ligachev was made head of the Secretariat.
Ligachev supported reform of the Soviet Union and initially supported Gorbachev; however, as Gorbachev’s policies of perestroika and glasnost began to resemble social democratic policies he distanced himself from Gorbachev, and by 1988 he was recognized as the leader of the more conservative, anti-Gorbachev faction of Soviet politicians.
During this period Ligachev uttered his notorious catch phrase "Boris, you are wrong", targeting Boris Yeltsin in a political discourse.
Ligachev served in the Politburo between 1985 and 1990.
Ligachev, having made some speeches criticising Gorbachev, was demoted from his more prestigious position as Secretary for Ideology to Secretary for Agriculture in 1988.
Perhaps the highlight of Ligachev's career was the 28th Congress of the CPSU in 1990.
Ligachev criticized Gorbachev for circumventing the Party via Soviet Presidency, and he argued Glasnost had gone too far.
During the Party Congress, Ligachev challenged Gorbachev for the office of General Secretary, standing as the "Leninist" candidate.
Having been defeated, Ligachev left the Politburo and went into temporary retirement.