A: Brussel, Brussels Hoofdstedelijk Gewest, Belgium
Belgian mathematician Pierre François Verhulst published from Brussels "Notice sur la loi que la population suit dans son accrossement" in Correspondance mathématique et physique X, 113–121. In this paper Verhulst constructed the simplest mathematical model of a continuously growing population with an upper limit to its size. "The concept of r/K selection theory derives its name from the competing dynamics of exponential growth and environmental limitation introduced here" (Wikipedia article on Pierre François Verhulst, accessed 01-13-2009).