Theaetetus

Theaetetus

Theaetetus of Athens, possibly the son of Euphronius of the Athenian deme Sunium, was a Greek mathematician. His principal contributions were on irrational lengths, which was included in Book X of Euclid's Elements, and proving that there are precisely five regular convex polyhedra. A friend of Socrates and Plato, he is the central character in Plato's eponymous Socratic dialogue.

From *.wikipedia.org,
General Info
.
Male
Date of Birth
January 1st, -0416
Age
2442
Birth Place
Greece, Attica Region
Date of Death
January 1st, -0369
Died Aged
47
Star Sign
Capricorn
Social Networks , Links
Interest
Loading Chart...
Lists
    index: 1x 0.020897150039673s
fmsppl-page-output: 1x 0.017529964447021s
t_/pages/fms-person-json: 1x 0.017508983612061s
t_/blocks/person-card-json: 1x 0.010313987731934s
t_/common/header: 1x 0.0066568851470947s
headline: 5x 0.0052840709686279s
router_page: 1x 0.0027878284454346s
t_/common/head: 1x 0.00060200691223145s
head-facts: 1x 0.00058293342590332s
t_/common/footer: 1x 0.00029087066650391s
t_/common/searcher-result: 1x 1.3828277587891E-5s
----- END OF DUMP (2026-10-10 19:25:10)  -----