Question: Who founded the famous chain of music-themed restaurants that opened its first establishment in the city that the first Pan African Conference was held?

<P0-S0> London has numerous venues for rock and pop concerts, including the world's busiest arena the o2 arena and other large arenas such as Earls Court, Wembley Arena, as well as many mid-sized venues, such as Brixton Academy, the Hammersmith Apollo and the Shepherd's Bush Empire. <P0-S1> Several music festivals, including the Wireless Festival, South West Four, Lovebox, and Hyde Park's British Summer Time are all held in London. <P0-S2> The city is home to the first and original Hard Rock Cafe and the Abbey Road Studios where The Beatles recorded many of their hits. <P0-S3> In the 1960s, 1970s and 1980s, musicians and groups like Elton John, Pink Floyd, David Bowie, Queen, The Kinks, The Rolling Stones, The Who, Eric Clapton, Led Zeppelin, The Small Faces, Iron Maiden, Fleetwood Mac, Elvis Costello, Cat Stevens, The Police, The Cure, Madness, The Jam, Dusty Springfield, Phil Collins, Rod Stewart and Sade, derived their sound from the streets and rhythms vibrating through London. <SEP> <P1-S0> The restaurant combined rock music, memorabilia related to rock 'n' roll and American cuisine. <P1-S1> On June 14, 1971 he and Peter Morton started the first Hard Rock Café (HRC) restaurant in London's fashionable Mayfair district. <SEP> <P2-S0> Organized primarily by the Trinidadian barrister Henry Sylvester Williams, it took place in Westminster Town Hall (now Caxton Hall) and was attended by 37 delegates and about 10 other participants and observers from Africa, the West Indies, the US and the UK, including Samuel Coleridge Taylor (the youngest delegate), John Alcindor, Dadabhai Naoroji, John Archer, Henry Francis Downing, and W.E.B. <P2-S1> Du Bois, with Bishop Alexander Walters of the AME Zion Church taking the chair. <P2-S2> The First Pan-African Conference was held in London from 23 to 25 July 1900 (just prior to the Paris Exhibition of 1900 ``in order to allow tourists of African descent to attend both events ''). <P2-S3> Du Bois played a leading role, drafting a letter (`` Address to the Nations of the World'') to European leaders appealing to them to struggle against racism, to grant colonies in Africa and the West Indies the right to self - government and demanding political and other rights for African Americans. <SEP> <P3-S0> culver franchising system, inc., doing business as culver's, is a privately owned and operated casual fast food restaurant chain that operates primarily in the midwestern united states. <P3-S1> culver's opened its first restaurant in 1984 in sauk city, wisconsin, and is currently headquartered in prairie du sac, wisconsin. <P3-S2> as of 3 july 2018, the chain had 665 restaurants across the united states, and 18 coming soon in 10 states. <SEP> <P4-S0> the modern hamburger was developed in the united states, but by the end of world war ii, around the middle of the 20th century, it began to spread to other countries as fast food became globalized. <P4-S1> the main cause of this gradual globalization was the successes of the large restaurant chains. <P4-S2> their desires to expand their businesses and increase their profits resulted in them creating franchises around the world. <P4-S3> mcdonald's was among the very first of the burger chains to take the global establishment of its brand seriously, but it was not the only one. <P4-S4> wimpy began operating in the united kingdom in 1954, 20 years before mcdonald's began operation in the country, and by 1970 it had expanded to over a thousand restaurants in 23 countries. <P4-S5> on august 21, 1971, in zaandam, near amsterdam in the netherlands, ahold opened its first european franchise. <P4-S6> in the 1970s, mcdonald's began to expand into europe and australia. <P4-S7> in asia, japan saw the establishment of its own fast food chain in 1972: mos burger (モスバーガー, mosu bāgā), an abbreviation of ``mountain, ocean, sun '', which eventually became a direct competitor to mcdonald's. <P4-S8> all of its products, however, were variations on the burger adapted to the asian world, including the teriyaki burger, takumi burger, and riceburger. <P4-S9> in hong kong, aji ichiban competed with large chains before it spread quickly throughout asia. <P4-S10> one of the first hamburger vending machines debuted in amsterdam in 1941 under the brand febo, its name derived from its original place of creation, the ferdinand bolstraat.