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  2. Water clock - Wikipedia

    en.wikipedia.org/wiki/Water_clock

    A water clock, or clepsydra (from Ancient Greek κλεψύδρα (klepsúdra) ' pipette, water clock '; from κλέπτω (kléptō) ' to steal ' and ὕδωρ (hydor) ' water '; lit. ' water thief ' ), is a timepiece by which time is measured by the regulated flow of liquid into (inflow type) or out from (outflow type) a vessel, and where the ...

  3. Ancient Mesopotamian units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Mesopotamian_units...

    Ancient Mesopotamian units of measurement originated in the loosely organized city-states of Early Dynastic Sumer. Each city , kingdom and trade guild had its own standards until the formation of the Akkadian Empire when Sargon of Akkad issued a common standard.

  4. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    There are no recognised examples in existence of outflowing water clocks from ancient Mesopotamia, but written references have survived. [14] The introduction of the water clock to China, perhaps from Mesopotamia, occurred as far back as the 2nd millennium BC, during the Shang dynasty, and at the latest by the 1st millennium BC. Around 550 AD ...

  5. Babylonian calendar - Wikipedia

    en.wikipedia.org/wiki/Babylonian_calendar

    Calendar of Nippur, Third Dynasty of Ur. The Babylonian calendar was a lunisolar calendar used in Mesopotamia from around the 2nd millennium BC until the Seleucid Era (), and it was specifically used in Babylon from the Old Babylonian Period until the Seleucid Era.

  6. Sexagesimal - Wikipedia

    en.wikipedia.org/wiki/Sexagesimal

    Sexagesimal, also known as base 60, [1] is a numeral system with sixty as its base.It originated with the ancient Sumerians in the 3rd millennium BC, was passed down to the ancient Babylonians, and is still used—in a modified form—for measuring time, angles, and geographic coordinates.

  7. Clock position - Wikipedia

    en.wikipedia.org/wiki/Clock_position

    A clock position, or clock bearing, is ... The historical trail leads from there to ancient Mesopotamia through the ancient Greek colonies placed on the coast of ...

  8. Babylonian astronomy - Wikipedia

    en.wikipedia.org/wiki/Babylonian_astronomy

    It was a common Mesopotamian belief that gods could and did indicate future events to mankind through omens; sometimes through animal entrails, but most often they believed omens could be read through astronomy and astrology. Since omens via the planets were produced without any human action, they were seen as more powerful.

  9. Bibliography of water clocks - Wikipedia

    en.wikipedia.org/wiki/Bibliography_of_water_clocks

    "The Water Clock in Mesopotamia". Archiv für Orientforschung (46/47). Chadwick, R. (1984). "The Origins of Astronomy and Astrology in Mesopotamia". Archaeoastronomy ...