Question:
Al-Husayn ibn Ali ibn Abi Talib (Arabic: lHsyn bn `ly bn 'by Tlb; 10 October 625 - 10 October 680) (3 Sha'aban AH 4 (in the ancient (intercalated) Arabic calendar) - 10 Muharram AH 61) (his name is also transliterated as Husayn ibn 'Ali, Husain, Hussain and Hussein), was a grandson of the Islamic Nabi (Arabic: nabiy, Prophet) Muhammad, and son of Ali ibn Abi Talib (the first Shia Imam and the fourth Rashid caliph of Sunni Islam), and Muhammad's daughter, Fatimah. He is an important figure in Islam as he was a member of the Bayt (Arabic: bayt, Household) of Muhammad, and Ahl al-Kisa' (Arabic: 'ahl lkisa, People of the Cloak), as well as being the third Shia Imam.
One of the important points of the treaty made between Al-Hasan and Mu'awiyah was that the latter should not designate anyone as his successor after his death. But after the death of Al-Hasan, Mu'awiyah, thinking that no one would be courageous enough to object to his decision as the caliph, designated his son Yazid as his successor in AD 680, breaking the treaty. Robert Payne quotes Mu'awiyah in History of Islam as telling his son Yazid to defeat Al-Husayn - because Mu'awiyah thought he was surely preparing an army against him - but to deal with him gently thereafter as Al-Husayn was a descendant of Muhammad, but to deal with 'Abd Allah ibn al-Zubair swiftly, as Mu'awiyah feared him the most.  In April AD 680, Yazid succeeded his father as caliph. He immediately instructed the governor of Al-Medinah to compel Al-Husayn and few other prominent figures to give their Bay'ah (Arabic: bay`a@, Pledge of allegiance). Al-Husain, however, refrained from it, believing that Yazid was openly going against the teachings of Islam in public, and changing the sunnah (Arabic: sn@, deeds, sayings, etc.) of Muhammad. In his view the integrity and survival of the Islamic community depended on the re-establishment of the correct guidance. He, therefore, accompanied by his household, his sons, brothers, and the sons of Al-Hasan, left Al-Medinah to seek asylum in Mecca.  While in Mecca, ibn al-Zubayr, Abdullah ibn Umar and Abdullah ibn Abbas advised Al-Husayn to make Mecca his base, and fight against Yazid from there. On the other hand, the people in Al-Kufah who were informed about Mu'awiyah's death sent letters urging Husayn to join them and pledge to support him against the Umayyads. Al-Husayn wrote back to them saying that he would send his cousin Muslim ibn Aqeel to report to him on the situation. If he found them united as their letters indicated he would speedily join them, because the Imam should act in accordance with the Qur'an, uphold justice, proclaim the truth, and dedicate himself to the cause of God. The mission of Muslim was initially successful, and, according to reports, 18,000 men pledged their allegiance. But the situation changed radically when Yazid appointed 'Ubayd Allah ibn Ziyad as the new governor of Al-Kufah, ordering him to deal severely with ibn 'Aqil. Before news of the adverse turn of events arrived in Mecca, Al-Husayn set out for Al-Kufah.  On the way, Al-Husayn found that Muslim was killed in Al-Kufah. He broke the news to his supporters and informed them that people had deserted him. Then, he encouraged anyone who so wished, to leave freely without guilt. Most of those who had joined him at various stages on the way from Mecca now left him.
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What happened

Answer:
Yazid succeeded his father as caliph. He immediately instructed the governor of Al-Medinah to compel Al-Husayn and few other prominent figures to give their Bay'ah


Question:
Madness are an English ska band from Camden Town, north London, who formed in 1976. One of the most prominent bands of the late 1970s and early 1980s 2 Tone ska revival, they continue to perform with six of the seven members of their classic line-up. Madness achieved most of their success in the early to mid-1980s. Both Madness and UB40 spent 214 weeks on the UK singles charts over the course of the decade, holding the record for most weeks spent by a group in the 1980s UK singles charts.
During 1979, the band began to attract a live following in London, being regulars at the Dublin Castle in Camden Town. The band's first commercial recording was the Lee Thompson composition "The Prince". The song, like the band's name, paid homage to their idol, Prince Buster. The song was released through 2 Tone Records, the label of The Specials founder Jerry Dammers. The song was a surprise hit, peaking in the UK music charts at number 16. A performance of "The Prince" on popular UK music show Top of the Pops helped Madness gain public recognition. Madness then toured with fellow 2 Tone bands The Specials and The Selecter, before recording their debut album.  That debut album, One Step Beyond... was released by Stiff Records. The album included a re-recording of "The Prince" and its B-side "Madness", and the band's second and third singles: "One Step Beyond" and "My Girl". The title song was a cover of the B-side of the 1960s Prince Buster hit "Al Capone". One Step Beyond... stayed in the British charts for 78 weeks, peaking at number 2. After the release of "My Girl", the band felt that they had exhausted the material from One Step Beyond..., and did not want to release any more singles from the album. However, Dave Robinson, head of Stiff Records, disagreed. Eventually, a compromise was made, and the band decided to release an EP featuring one album track and three new tracks. The result was the Work Rest and Play EP, which was headlined by the song "Night Boat to Cairo", from the One Step Beyond album. The EP reached number 6 in the UK singles chart.  Live recordings of Madness performances as well as those by other 2 Tone bands were used in the documentary film and soundtrack album Dance Craze.  In 1980, the band's second album, Absolutely reached number 2 in the UK album charts. Absolutely spawned some of the band's biggest hits, most notably "Baggy Trousers", which peaked at number 3 in the UK singles chart. "Embarrassment" reached number 4 in the charts, and the instrumental song "The Return of the Los Palmas 7" climbed to number 7. Although the album reviews were generally less enthusiastic than those of One Step Beyond..., they were mostly positive. Robert Christgau gave the album a favourable B- grade, but Rolling Stone awarded the album just one out of five stars. Rolling Stone was particularly scathing of the ska revival in general, stating that "The Specials wasn't very good" and Madness were simply "the Blues Brothers with English accents".  A drama-documentary film entitled Take It or Leave It was released in 1981, featuring the band members playing themselves in a re-creation of their early days to the then-current period.
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Where were they regulars at

Answer:
Dublin Castle