Some context: Mohammed Hussein redirects here; for the Muslim cleric, see Muhammad Ahmad Hussein. Babrak Karmal (Dari/Pashto: bbrkh khrml, born Sultan Hussein; 6 January 1929 - 1 or 3 December 1996) was an Afghan politician who was installed as president of Afghanistan by the Soviet Union when they invaded in 1979. Karmal was born in Kamari and educated at Kabul University.
Imprisoned from 1953 to 1956, Karmal befriended fellow inmate Mir Akbar Khyber, who introduced Karmal to Marxism. Karmal changed his name from Sultan Hussein to Babrak Karmal, which means "Comrade of the Workers'" in Pashtun, to disassociate himself from his bourgeois background. When he was released from prison, he continued his activities in the student union, and began to promote Marxism. Karmal spent the rest of the 1950s and the early 1960s becoming involved with Marxist organizations, of which there were at least four in Afghanistan at the time; two of the four were established by Karmal. When the 1964 Afghan Provisional Constitution, which legalised the establishment of new political entities, was introduced several prominent Marxists agreed to establish a communist political party. The People's Democratic Party of Afghanistan (PDPA, the Communist Party) was established in January 1965 in Nur Muhammad Taraki's home. Factionalism within the PDPA quickly became a problem; the party split into the Khalq led by Taraki alongside Hafizullah Amin, and the Parcham led by Karmal.  During the 1965 parliamentary election Karmal was one of four PDPA members elected to the lower house of parliament; the three others were Anahita Ratebzad, Nur Ahmed Nur and Fezanul Haq Fezan. No Khalqists were elected; however, Amin was 50 votes short of being elected. The Parchamite victory may be explained by the simple fact that Karmal could contribute financially to the PDPA electoral campaign. Karmal became a leading figure within the student movement in the 1960s, electing Mohammad Hashim Maiwandwal as Prime Minister after a student demonstration (called for by Karmal) concluded with three deaths under the former leadership.  In 1967, the PDPA unofficially split into two formal parties, one Khalqist and one Parchamist. The dissolution of the PDPA was initiated by the closing down of the Khalqist newspaper, Khalq. Karmal criticised the Khalq for being too communist, and believed that its leadership should have hidden its Marxist orientation instead of promoting it. According to the official version of events, the majority of the PDPA Central Committee rejected Karmal's criticism. The vote was a close one, and it is reported that Taraki expanded the Central Committee to win the vote; this plan resulted in eight of the new members becoming politically unaligned with and one switching to the Parchamite side. Karmal and half the PDPA Central Committee left the PDPA to establish a Parchamite-led PDPA. Officially the split was caused by ideological differences, but the party may have divided between the different leadership styles and plans of Taraki versus Karmal. Taraki wanted to model the party after Leninist norms while Karmal wanted to establish a democratic front. Other differences were socioeconomic. The majority of Khalqists came from rural areas; hence they were poorer, and were of Pashtun origin. The Parchamites were urban, richer, and spoke Dari more often than not. The Khalqists accused the Parchamites of having a connection with the monarchy, and because of it, referred to the Parchamite PDPA as the "Royal Communist Party". Both Karmal and Amin retained their seats in the lower house of parliament in the 1969 parliamentary election.
Are there any other interesting aspects about this article?
A: In 1967, the PDPA unofficially split into two formal parties, one Khalqist and one Parchamist.

Some context: Cream were a 1960s British rock power trio consisting of drummer Ginger Baker, guitarist/singer Eric Clapton and lead singer/bassist Jack Bruce. The group's third album, Wheels of Fire (1968), was the world's first platinum-selling double album. The band is widely regarded as the world's first successful supergroup. In their career, they sold more than 15 million copies of their albums worldwide.
In 1968 came the band's third release, Wheels of Fire, which topped the American charts. Still a relative novelty, the "double album" of two LP discs was well suited to extended solos. Wheels of Fire studio recordings showcased the band moving slightly away from the blues and more towards a semi-progressive rock style highlighted by odd time signatures and various orchestral instruments. However, the band did record Howlin' Wolf's "Sitting on Top of the World" and Albert King's "Born Under a Bad Sign". According to a BBC interview with Clapton, the record company, also handling Albert King, asked the band to cover "Born Under a Bad Sign", which became a popular track off the record. The opening song, "White Room", became a radio staple. Another song, "Politician", was written by the band while waiting to perform live at the BBC. The album's second disc featured three live recordings from the Winterland Ballroom and one from the Fillmore. Clapton's second solo from "Crossroads" has made it to the top 20 in multiple "greatest guitar solo" lists.  After the completion of Wheels of Fire in mid-1968, the band members had had enough and wanted to go their separate ways. Baker stated in a 2006 interview with Music Mart magazine, "It just got to the point where Eric said to me: 'I've had enough of this,' and I said so have I. I couldn't stand it. The last year with Cream was just agony. It damaged my hearing permanently, and today I've still got a hearing problem because of the sheer volume throughout the last year of Cream. But it didn't start off like that. In 1966, it was great. It was really a wonderful experience musically, and it just went into the realms of stupidity." Bruce and Baker's combustible relationship proved even worse as a result of the strain put upon the band by non-stop touring, forcing Clapton to play the perpetual role of peacekeeper.  Clapton had also become interested in the music of Bob Dylan's former backing group, now known as the Band, and their debut album, Music from Big Pink, which proved to be a welcome breath of fresh air, to Clapton, in comparison to the incense and psychedelia that had defined Cream. Furthermore, he had read a scathing Cream review in Rolling Stone, a publication he had much admired, in which the reviewer, Jon Landau, called him a "master of the blues cliche." In the wake of that article, Clapton wanted to end Cream and pursue a different musical direction.  At the beginning of their farewell tour on 4 October 1968, in Oakland, California, nearly the entire set consisted of songs from Wheels of Fire: "White Room", "Politician", "Crossroads", "Spoonful", "Deserted Cities of the Heart", and "Passing the Time" taking the place of "Toad" for a drum solo. "Passing the Time" and "Deserted Cities" were quickly removed from the setlist and replaced by "Sitting on Top of the World" and "Toad".
Why did the group split?
A:
The last year with Cream was just agony.