I am not trying to be rude, so don't take this the wrong way, I honestly just don't know. Can you explain why this is a milestone?
Sure. If you were a zoo professional during the period from 1962 to 1999, you would understand. Conway was one of the founders of the independent AZA, led development of the accreditation system, was one of the originators of the SSP concept, was a leading innovator in exhibit design (read his paper "How to Exhibit a Bullfrog" from 1967), built NYZS (later WCS) into one of the world's most effective conservation organizations, and is often credited with single-handedly leading zoos from being living museums to being active agents of conservation. Grizmek, Perkins and Hediger were giants, but Conway's accomplishments are even more impressive.
His exhibit legacy is unparalleled: Aquatic Bird House, World of Darkness, World of Birds, Wild Asia, Children's Zoo, Jungleworld, Zoo Center, Himalayan Highlands, Baboon Reserve, Aitken Seabird Aviary, Congo Gorilla Forest, plus the entire new Central Park Zoo.
His
in-situ conservation impact dwarfs anything done by a zoo director at any time--check out any recent WCS project list.
As Elizabeth Hanson author of
Animal Attractions wrote: "Conway is frequently and un-ironically referred to by other zoo professionals as 'god.'" While that's pushing it, there is no doubt that zoos as we know them today would be very different without Conway's vision and leadership.