Chris Phoenix is a co-moderator of the sci.nanotech newsgroup. He has been a regular attendee of Foresight Institute conferences and gatherings for many years. He has studied nanotechnology with K. Eric Drexler, when Drexler gave a course on the subject at Stanford University.
... (1863-1942), India and Tibet
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Zhang Qian[?] - spent 12 years starting in 138 BC exploring much of Central Asia for Emperor Han Wu Di[?]
Zheng He, (1371-1435), Chinese ...