Ocupation: Mathematician
Life: b. July 15, 1930
Birthday: July 15
An announcement of [Christopher] Zeeman's lecture at Northwestern University in the spring of 1977 contains a quote describing catastrophe theory as the most important development in mathematics since the invention of calculus 300 years ago.
source: Stephen Smale, Roderick Wong (2000). “The Collected Papers of Stephen Smale”, p.814, World Scientific
topic: Spring, Years, Important, Northwestern, Northwestern University