The culture of Birmingham is characterised by a deep-seated tradition of individualism and experimentation, and the unusually fragmented but innovative culture that results has been widely remarked upon by commentators. Writing in 1969, the New York-based urbanist Jane Jacobs cast Birmingham as one of the world's great examples of urban creativity: surveying its history from the 16th to the 20th centuries she described it as a "great, confused laboratory of ideas", noting how its chaotic structure as a "muddle of oddments" meant that it "grew through constant diversification". The historian G. M. Young – in a classic comparison later expanded upon by Asa Briggs – contrasted the "experimental, adventurous, diverse" culture of Birmingham with the "solid, uniform, pacific" culture of the outw