Question: Montana was born to Joseph Clifford Montana Sr. (1932-2017) and Theresa Marie Bavuso Montana (1935-2004) in New Eagle, Pennsylvania, a borough of Washington County located in the western portion of the state. He grew up in the city of Monongahela, a coal mining town 25 miles (40 km) south of Pittsburgh. His maternal grandparents, Vincenzo "James" Bavuso and Josephine Savarino Bavuso, were both Italian immigrants.

Montana was traded to the Kansas City Chiefs in April 1993. His trade, along with the free-agent signing of star Los Angeles Raiders running back Marcus Allen to the Chiefs, generated much media attention and excitement in Kansas City. The Chiefs mailed three jerseys to Montana. One was number 3, his number from Notre Dame which the Chiefs had retired in honor of Hall of Fame kicker Jan Stenerud, who offered to let him wear it. Another was number 19, which he wore in youth football and also briefly in training camp of the 1979 season with San Francisco, and the third was number 16, which Hall of Fame quarterback Len Dawson offered to let Montana wear since the organization had retired it. Montana declined Dawson's and Stenerud's offers and wore 19 instead and signed a $10 million contract over three years. Montana was injured for part of the 1993 season, but was still selected to his final Pro Bowl and led the Chiefs in two come-from-behind wins in the 1993 playoffs, reaching the AFC Championship Game where Kansas City lost to the Buffalo Bills. In their Wild Card win over the Pittsburgh Steelers, he threw a 7-yard fourth down touchdown pass to send the game into overtime. Then against the Houston Oilers, he led the team to 28 second half points, including three touchdown passes to earn the 29th fourth quarter comeback win of his career. Including their two playoff victories that year (the Chiefs only had one prior playoff win since 1970 Super Bowl IV), the 1993 Chiefs won 13 games, tying the franchise record for wins in a season. Montana returned healthy to the Chiefs in 1994, starting all but two games. His highlights included a classic duel with John Elway (which Montana won, 31-28) on Monday Night Football, and a memorable game in week 2 when Montana played against his old team, the 49ers and Steve Young. In a much-anticipated match-up, Montana and the Chiefs prevailed and defeated the 49ers, 24-17. Montana led his team to a final playoff appearance in 1994.

Using a quote from the above article, answer the following question: How long did Montana stay on the Kansas City Chiefs?
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Question: 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.

Using a quote from the above article, answer the following question: what happened after that?
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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.