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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Ancient Near Eastern cosmology | 5/12 | https://en.wikipedia.org/wiki/Ancient_Near_Eastern_cosmology | reference | science, encyclopedia | 2026-05-05T09:33:43.951701+00:00 | kb-cron |
==== Moon ==== Mesopotamians believed the moon to be a manifestation of the moon god, known as Nanna in Sumerian texts or Sîn in Akkadian texts, a high god of the pantheon, subject to cultic devotion, and father of the sun god Shamash and the Venus god Inanna. The path of the moon in the night sky and its lunar phases were also of interest. At first, Mesopotamia had no common calendar, but around 2000 BC, the semi-lunar calendar of the Sumerian center of Nippur became increasingly prevalent. Hence, the moon god was responsible for ordering perceivable time. The lunar calendar was divided into twelve months of thirty days each. New months were marked by the appearance of the moon after a phase of invisibility. The Enuma Elish creation myth describes Marduk as arranging the paths of the stars and then spends considerable space on Marduk's ordering of the moon:12 He made Nannaru (=the moon-god) appear (and) entrusted the night to him. 13 He assigned him as the jewel of the night to determine the days. 14 Month by month without cease, he marked (him) with a crown: 15 “At the beginning of the month, while rising over the land, 16 you shine with horns to reveal six days. 17 On the seventh day, (your) disc shall be halved. 18 On the fifteenth day, in the middle of each month, you shall stand in opposition. 19 As soon as Šamaš (= the sun-god) sees you on the horizon, 20 reach properly your full measure and form yourself back. 21 At the day of disappearance, approach the path of Šamaš. 22 [... 3]0. day you shall stand in conjunction. You shall be equal to Šamaš. The ideal course of the moon was thought to form one month every thirty days. However, the precise lunar month is 29.53 days, leading to variations that made the lunar month counted as 29 or 30 days in practice. The mismatch between the predictions and reality of the course of the moon gave rise to the idea that the moon could act according to its expected course as a good omen or deviate from it as a bad omen. In the 2nd millennium BC, Mesopotamian scholars composed the Enūma Anu Enlil, a collection of at least seventy tablets concerned with omens. The first fourteen (1–14) relate to the appearance of the moon, and the next eight (15–22) deal with lunar eclipses. The moon was also assigned other functions, such as providing illumination during the night, and already in this period, had a known influence on the tides. During the day when the moon was not visible, it was thought that the moon descended beneath the flat disk of the earth and, like the sun, underwent a voyage through the underworld. The cosmic voyage and motion of the moon also allowed it to exert influence over the world; this belief naturally allowed for the practice of divination to arise.
==== Stars and planets ====
Mesopotamian cosmology would differ from the practice of astronomy in terms of terminology: for astronomers, the word "firmament" was not used but instead "sky" to describe the domain in which the heavenly affairs were visible. The stars were located on the firmament. The earliest texts attribute to Anu, Enlil, and Enki (Ea) the ordering of perceivable time by creating and ordering the courses of the stars. Later, according to the Enuma Elish, the stars were arranged by Marduk into constellations representing the images of the gods. The year was fixed by organizing the year into twelve months, and by assigning (the rising of) three stars to each of the twelve months. The moon and zenith were also created. Other phenomena introduced by Marduk included the lunar phases and lunar scheme, the precise paths that the stars would take as they rose and set, the stations of the planets, and more. Another account of the creation of the heavenly bodies is offered in the Babyloniaca of Berossus, where Bel (Marduk) creates stars, sun, moon, and the five (known) planets; the planets here do not help guide the calendar (a lack of concern for the planets also shared in the Book of the Courses of the Heavenly Luminaries, a subsection of 1 Enoch). Concern for the establishment of the calendar by the creation of heavenly bodies as visible signs is shared in at least seven other Mesopotamian texts. A Sumerian inscription of Kudur-Mabuk, for example, reads "The reliable god, who interchanges day and night, who establishes the month, and keeps the year intact." Another example is to be found in the Exaltation of Inanna.
The word "star" (mul in Sumerian; kakkabu in Akkadian) was inclusive to all celestial bodies, stars, constellations, and planets. A more specific term for planets existed however (udu.idim in Sumerian; bibbu in Akkadian, literally "wild sheep") to distinguish them from other stars (of which they were a subcategory): unlike the stars thought to be fixed into their location, the planets were observed to move. By the 3rd millennium BC, the planet Venus was identified as the astral form of the goddess Inanna (or Ishtar), and motifs such as the morning and evening star were applied to her. Jupiter became Marduk (hence the name "Marduk Star", also called Nibiru), Mercury was the "jumping one" (in reference to its comparatively fast motion and low visibility) associated with the gods Ninurta and Nabu, and Mars was the god of pestilence Nergal and thought to portend evil and death. Saturn was also sinister. The most obvious characteristic of the stars were their luminosity and their study for the purposes of divination, solving calendrical calculations, and predictions of the appearances of planets, led to the discovery of their periodic motion. From 600 BC onwards, the relative periodicity between them began to be studied.
=== Upper waters ===