Precursors
AE (Anno Epoche) era
Ursula leGuin
James Lovelock
Howard Gardner
Industrial Era
J. Howard Moore
Alan Matthison Turing
Rudolf Steiner
Ernest Thompson Seton and Robert Baden-Powell
Henry David Thoreau
Pre-Industrial Era
Jean Jacques Rousseau
Jan Amos Comenius
certain Mediterranean city states of antiquity
indigenas & certain pre-colonial cultures
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