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The Natural History of Pliny, Volume 1 (of 6) cover

The Natural History of Pliny, Volume 1 (of 6)

Chapter 83: CHAP. 79. (77.)—OF THE MODE IN WHICH THE DAYS ARE COMPUTED.
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The text assembles a systematic survey of the natural world, opening with cosmological and geographical discussions and proceeding through plants, animals, minerals, and human uses of natural substances. It synthesizes reports from earlier authors, travelers, and craftsmen, combining empirical observation, hearsay, and learned commentary to describe physical phenomena, medicinal remedies, technologies, and curiosities. Organized as an encyclopedic sequence of books and chapters, it catalogues facts and theories, cites authorities, and balances practical instruction with natural-philosophical reflection.

CHAP. 79. (77.)—OF THE MODE IN WHICH THE DAYS ARE COMPUTED.

The days have been computed by different people in different ways. The Babylonians reckoned from one sunrise to the next; the Athenians from one sunset to the next; the Umbrians from noon to noon; the multitude, universally, from light to darkness; the Roman priests and those who presided over the civil day, also the Egyptians and Hipparchus, from midnight to midnight526. It appears that the interval from one sunrise to the next is less near the solstices than near the equinoxes, because the position of the zodiac is more oblique about its middle part, and more straight near the solstice527.