Answers are grounded in this paper and cite their sources.
The blast of wind into which Blandford stepped when he turned around the corner ultimately blew him to China, Greece, and the Middle East. Many another practitioner found himself equally discombobulated by the hurricane. And, in the following five years, teachers and students of theory became practitioners willy-nilly. There should therefore be some unity in a series of articles traversing trends in teaching, theory, and practice during the decade; the less sympathetic reader might call it overlap or duplication.
No takes yet. Share an insight, caveat, or question.
Charles S. Ascher (1950) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: