It was also in the reign of Justinian that Cosmas Indicopleustes, an Egyptian merchant, made several voyages, and afterwards composed his XpUTTcavuxr} Toaoypa(Pia (Christian Topography), containing, in addition to his absurd cosmogony, a tolerable description of India.
After holding more than 200 sittings the so-called Commission was dissolved without getting beyond the realm of theory and pia desideria.
Besides the works already noticed, Glanvill wrote Lux orientalis (1662); Philosophia pia (1671); Essays on Several Important Subjects in Philosophy and Religion (1676); An Essay concerning Preaching; and Sermons.
Stifel introduced the sign (+) for addition or a positive quantity, which was previously denoted by plus, pia, or the letter p. Subtraction, previously written as minus, mene or the letter m, was symbolized by the sign (-) which is still in use.
" In ancient times Democritus was the founder of the atomic theory, while Anaxagoras propounded that of continuity, under the name of the doctrine of homoeomeria ('OAotop.pia), or of the similarity of the parts of a body to the whole.