I am trying to find information on when and on what occasion the former mayor of Denver, Wellington E. Webb, said his words: ""The 19th century was a century of empires, the 20th century was a century of nation states. The 21st century will be a century of cities". I could find only sources quoting the statement, but no further details. Did anyone come across that? Thank you for any leads.

More Sabina Baraniewicz-Kotasińska's questions See All
Similar questions and discussions