Mathematics , mathematical, geometric-algebraic, similar to the Euclidean geometry. From
Shaduppum Iraq. 2003–1595 BC.
Iraq Museum. Mesopotamian mathematics and science was based on a
sexagesimal (base 60)
numeral system. This is the source of the 60-minute hour, the 24-hour day, and the 360-
degree circle. The
Sumerian calendar was lunisolar, with three seven-day weeks of a lunar month. This form of mathematics was instrumental in early
map-making. The Babylonians also had theorems on how to measure the area of shapes and solids. They measured the circumference of a circle as three times the diameter and the area as one-twelfth the square of the circumference, which would be correct if were fixed at 3. The volume of a cylinder was taken as the product of the area of the base and the height; however, the volume of the
frustum of a cone or a
square pyramid was incorrectly taken as the product of the height and half the sum of the bases. Also, there was a recent discovery in which a tablet used as 25/8 (3.125 instead of 3.14159~). The Babylonians are also known for the Babylonian mile, which was a measure of distance equal to about seven modern miles (11 km). This measurement for distances eventually was converted to a time-mile used for measuring the travel of the Sun, therefore, representing time. who developed an advanced arithmetical system with which they were able to do calculations in an
algorithmic fashion. The
Babylonian clay tablet
YBC 7289 (–1600 BC) gives an approximation of in four
sexagesimal figures, , which is accurate to about six
decimal digits, and is the closest possible three-place sexagesimal representation of : : 1 + \frac{24}{60} + \frac{51}{60^2} + \frac{10}{60^3} = \frac{305470}{216000} = 1.41421\overline{296}. The Babylonians were not interested in exact solutions, but rather approximations, and so they would commonly use
linear interpolation to approximate intermediate values. One of the most famous tablets is the
Plimpton 322 tablet, created around 1900–1600 BC, which gives a table of
Pythagorean triples and represents some of the most advanced mathematics prior to Greek mathematics.
Astronomy From
Sumerian times, temple priesthoods had attempted to associate current events with certain positions of the planets and stars. This continued to Assyrian times, when
Limmu lists were created as a year by year association of events with planetary positions, which, when they have survived to the present day, allow accurate associations of relative with absolute dating for establishing the history of Mesopotamia. The Babylonian astronomers were very adept at mathematics and could predict
eclipses and
solstices. Scholars thought that everything had some purpose in astronomy. Most of these related to religion and omens. Mesopotamian astronomers worked out a 12-month calendar based on the cycles of the moon. They divided the year into two seasons: summer and winter. The origins of astronomy as well as astrology date from this time. During the 8th and 7th centuries BC, Babylonian astronomers developed a new approach to astronomy. They began studying philosophy dealing with the ideal nature of the early
universe and began employing an internal logic within their predictive planetary systems. This was an important contribution to astronomy and the
philosophy of science and some scholars have thus referred to this new approach as the first scientific revolution. This new approach to astronomy was adopted and further developed in Greek and Hellenistic astronomy. In
Seleucid and
Parthian times, the astronomical reports were thoroughly scientific. How much earlier their advanced knowledge and methods were developed is uncertain. The Babylonian development of methods for predicting the motions of the planets is considered to be a major episode in the
history of astronomy. The only Greek-Babylonian astronomer known to have supported a
heliocentric model of planetary motion was
Seleucus of Seleucia (b. 190 BC). Seleucus is known from the writings of
Plutarch. He supported Aristarchus of Samos' heliocentric theory where the
Earth rotated around its own axis which in turn revolved around the
Sun. According to
Plutarch, Seleucus even proved the heliocentric system, but it is not known what arguments he used, except that he correctly theorized on tides as a result of the Moon's attraction. Babylonian astronomy served as the basis for much of
Greek,
classical Indian, Sassanian,
Byzantine,
Syrian,
medieval Islamic,
Central Asian, and
Western European astronomy.
Medicine ,
Iraq. The oldest Babylonian texts on
medicine date back to the
Old Babylonian period in the first half of the
2nd millennium BC. The most extensive Babylonian medical text, however, is the
Diagnostic Handbook written by the
ummânū, or chief scholar,
Esagil-kin-apli of
Borsippa, and
prescriptions. The
Diagnostic Handbook introduced the methods of
therapy and
aetiology and the use of
empiricism,
logic, and
rationality in diagnosis, prognosis and therapy. The text contains a list of medical
symptoms and often detailed empirical
observations along with logical rules used in combining observed symptoms on the body of a
patient with its diagnosis and prognosis. The symptoms and diseases of a patient were treated through therapeutic means such as
bandages,
creams and
pills. If a patient could not be cured physically, the Babylonian physicians often relied on
exorcism to cleanse the patient from any
curses. Esagil-kin-apli's
Diagnostic Handbook was based on a logical set of
axioms and assumptions, including the modern view that through the examination and
inspection of the symptoms of a patient, it is possible to determine the patient's
disease, its aetiology, its future development, and the chances of the patient's recovery. Esagil-kin-apli discovered a variety of
illnesses and diseases and described their symptoms in his
Diagnostic Handbook. These include the symptoms for many varieties of
epilepsy and related
ailments along with their diagnosis and prognosis. Some treatments used were likely based on the known characteristics of the ingredients used. The others were based on the symbolic qualities.
Technology Mesopotamian people invented many technologies including metal and copper-working, glass and lamp making, textile weaving,
flood control, water storage, and irrigation. They were also one of the first
Bronze Age societies in the world. They developed from copper, bronze, and gold on to iron. Palaces were decorated with hundreds of kilograms of these very expensive metals. Also, copper, bronze, and iron were used for armor as well as for different weapons such as swords, daggers, spears, and
maces. According to a recent hypothesis, the
Archimedes' screw may have been used by Sennacherib, King of Assyria, for the water systems at the
Hanging Gardens of Babylon and
Nineveh in the 7th century BC, although mainstream scholarship holds it to be a
Greek invention of later times. Later, during the Parthian or Sasanian periods, the
Baghdad Battery, which may have been the world's first battery, was created in Mesopotamia. ==Religion and philosophy==