The claim that London was becoming a genuine global centre in the 1980s and 1990s is well-supported by substantial evidence from multiple authoritative sources. The 1986 "Big Bang" deregulation of the London Stock Exchange — which abolished fixed commissions, ended the separation of dealers and advisors, and allowed foreign firms to own UK brokers — is widely recognized as the pivotal event that transformed the City of London. The BBC describes it as "revolutionising its fortunes and turning it into a financial capital to rival New York," noting that within a year of Big Bang, 75 of the Stock Exchange's member firms were foreign-owned, up from zero. The Bank of England's own 1989 Quarterly Bulletin documented London as "a major centre for international eurocurrency business, eurobond transactions, insurance, foreign exchange, fund management and corporate financial advice," accounting for around a fifth of total international banking business. Academic literature in *Financial History Review* (Cambridge University Press) describes the period from the 1970s to the 1990s as witnessing "a revolution in international financial markets," driven by deregulation and financial innovation, with London as a key centre. An Oxford University Press chapter titled "London as an International Financial Centre, 1980–2000: Global Powerhouse or Wimbledon EC2?" explicitly discusses London's prosperity in the financial services industry during the 1980s and 1990s. The term "entrepreneurial flair" is somewhat subjective and qualitative, but the broader assertion — that London was becoming a genuine global centre during this period — is firmly established by the historical record. The claim is accurate with no material qualification missing. Sources: - BBC News, "How the Big Bang changed the City of London for ever" — https://www.bbc.co.uk/news/business-37751599 - Bank of England Quarterly Bulletin (1989), "London as an international financial centre" — https://www.bankofengland.co.uk/-/media/boe/files/quarterly-bulletin/1989/london-as-an-international-financial-centre.pdf - Cambridge University Press / Financial History Review, "Big Bang in the City of London: an intentional revolution or an accident?" — https://www.cambridge.org/core/journals/financial-history-review/article/abs/big-bang-in-the-city-of-london-an-intentional-revolution-or-an-accident/BA85A853A5A07EF6FD8F5C31AA50D804 - Oxford University Press, "London as an International Financial Centre, 1980–2000: Global Powerhouse or Wimbledon EC2?" — https://doi.org/10.1093/acprof:oso/9780199269495.003.0014 - John Plender, "London's Big Bang in International Context" — https://g-city.sass.org.cn/_upload/article/files/0f/cd/5f96eddf40f8b95552fb106e5fca/95f917f1-872f-40d5-90c9-e772e72d24c4.pdf