Answer the question at the end by quoting:

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.

How was he going against the teachings?

going against the teachings of Islam in public, and changing the sunnah (Arabic: sn@, deeds, sayings, etc.) of Muhammad.



Answer the question at the end by quoting:

The Beatles were an English rock band formed in Liverpool in 1960. With members John Lennon, Paul McCartney, George Harrison and Ringo Starr, they became widely regarded as the foremost and most influential music band. Rooted in skiffle, beat and 1950s rock and roll, the Beatles later experimented with several musical styles, ranging from pop ballads and Indian music to psychedelia and hard rock, often incorporating classical elements and unconventional recording techniques in innovative ways. In 1963 their enormous popularity first emerged as "Beatlemania"; as the group's music grew in sophistication, led by primary songwriters Lennon and McCartney, the band were integral to pop music's evolution into an art form and to the development of the counterculture of the 1960s.
Touring internationally in June and July, the Beatles staged 37 shows over 27 days in Denmark, the Netherlands, Hong Kong, Australia and New Zealand. In August and September they returned to the US, with a 30-concert tour of 23 cities. Generating intense interest once again, the month-long tour attracted between 10,000 and 20,000 fans to each 30-minute performance in cities from San Francisco to New York.  In August, journalist Al Aronowitz arranged for the Beatles to meet Bob Dylan. Visiting the band in their New York hotel suite, Dylan introduced them to cannabis. Gould points out the musical and cultural significance of this meeting, before which the musicians' respective fanbases were "perceived as inhabiting two separate subcultural worlds": Dylan's audience of "college kids with artistic or intellectual leanings, a dawning political and social idealism, and a mildly bohemian style" contrasted with their fans, "veritable 'teenyboppers' - kids in high school or grade school whose lives were totally wrapped up in the commercialised popular culture of television, radio, pop records, fan magazines, and teen fashion. To many of Dylan's followers in the folk music scene, the Beatles were seen as idolaters, not idealists." Within six months of the meeting, according to Gould, "Lennon would be making records on which he openly imitated Dylan's nasal drone, brittle strum, and introspective vocal persona"; and six months after that, Dylan began performing with a backing band and electric instrumentation, and "dressed in the height of Mod fashion". As a result, Gould continues, the traditional division between folk and rock enthusiasts "nearly evaporated", as the Beatles' fans began to mature in their outlook and Dylan's audience embraced the new, youth-driven pop culture.  During the 1964 US tour, the group were confronted with the reality of racial segregation in the country at the time, particularly in the South. When informed that the 11 September show at the Gator Bowl in Jacksonville, Florida was to be held at a segregated venue, the Beatles expressed astonishment and announced that they would refuse to perform unless the show become integrated. Lennon stated: "We never play to segregated audiences and we aren't going to start now ... I'd sooner lose our appearance money." The group's stand drew controversy in the local media, but city officials relented and agreed to allow an integrated show. On the tour the group also refused to stay in segregated hotels. Documents reveal that for their subsequent US tours in 1965 and 1966, the Beatles included clauses in contracts stipulating that shows be integrated.

Why did they meet Bob Dylan?
the musical and cultural significance of this meeting, before which the musicians' respective fanbases were "perceived as inhabiting two separate subcultural worlds":