c. 6th – 3rd century BC ) was a Chaldean astronomer and mathematician.

possibly died 14 August 330 BC ) was a Chaldean astronomer and mathematician.

* Kidinnu, Chaldean astronomer and mathematician

Hipparchus constructed a cycle by multiplying by 17 a cycle due to the Chaldean astronomer Kidinnu, so as to closely match an integer number of synodic months ( 4267 ), anomalistic months ( 4573 ), years ( 345 ), and days ( 126007 + about 1 hour ); it is also close to a half-integer number of draconic months ( 4630. 53 ...), so it is an eclipse cycle.

The equality of 269 anomalistic months to 251 synodic months was already known to Chaldean astronomers ( see Kidinnu ).

* Babylonian / Chaldean :- Naburimannu, Kidinnu, Soudines

Further material was gleaned from the De honesta disciplina of 1504 by Petrus Crinitus, which included extracts from Michael Psellos's De daemonibus, and the De Mysteriis Aegyptiorum ( Concerning the mysteries of Egypt ...), a book on Chaldean and Assyrian magic by Iamblichus, a 4th century Neo-Platonist.

The short-lived 11th dynasty of the Kings of Babylon ( 6th century BC ) is conventionally known to historians as the Chaldean Dynasty, although only the first four rulers of this dynasty were known to be Chaldeans, and the last ruler, Nabonidus ( and his son and regent Belshazzar ) was known to be from Assyria.

The Chaldean king Merodach-Baladan allied with the Elamites during the 8th century BC in numerous failed attempts to wrest Babylon from the Assyrians.

It was the formulation of Mary as the Theotokos which caused a schism with the Church of the East, now divided between the Assyrian Church of the East and the Ancient Church of the East, while the Chaldean Catholic Church entered into full communion with Rome in the 16th century.

The 15th-century monk Annio da Viterbo credited a manuscript he claimed to have found to the Chaldean historian of the 3rd century BC, Berossus, where " Pandora " was also named as a daughter-in-law of Noah ; this attempt to conjoin pagan and scriptural narrative is recognized as a forgery.

The followers of Bardaisan of Mesopotamia, a sect of the 2nd century deemed heretical by the Catholic Church, drew upon Chaldean astrology, to which Bardaisan's son Harmonius, educated in Athens, added Greek ideas including a sort of metempsychosis.

From the end of the 7th century BC Ur was ruled by the so called Chaldean Dynasty of Babylon.

The division of the ecliptic into the zodiacal signs originates in Babylonian (" Chaldean ") astronomy during the first half of the 1st millennium BC, likely during Median /" Neo-Babylonian " times ( 7th century BC ),

In the Near East, the first half of this century was dominated by the Neo-Babylonian or Chaldean empire, which had risen to power late in the previous century after successfully rebelling against Assyrian rule.

The modern Assyrian Church of the East emerged in the 16th century following a split with the Chaldean Church, which later entered into communion with Rome as an Eastern Catholic Church.

The split of the 15th century, which saw the emergence of separate Assyrian and Chaldean Churches, left only the former as an independent sect.

The first recorded use of the term is found in the mid-second century neo-Platonist work, the Chaldean Oracles ( Fragment 153 des Places ( Paris, 1971 ): ' For the theourgoí do not fall under the fate-governed herd ').

More details are known from the late 8th century BC, when the Elamites were allied with the Chaldean chieftain Merodach-baladan to defend the cause of Babylonian independence from Assyria.

* The 11th dynasty of Babylon ( 6th century BC ) is conventionally known as the Chaldean Dynasty

Gerrha-inhabited by Chaldean exiles from Babylon-controlled the Incense trade routes across Arabia to the Mediterranean and exercised control over the trading of aromatics to Babylon in the 1st century BC.

The most famous patriarch of the Chaldean Church in the 19th century was Joseph VI Audo who is remembered also for his clashes with Pope Pius IX mainly about his attempts to extend the Chaldean jurisdiction over the Indian Syro-Malabar Catholic Church.

One of the oldest Christian churches, it is a modern successor of the historical Church of the East, also known as the Persian Church, having emerged from a split with the Chaldean Church in the 16th century.

This arrangement was probably done during the 3rd century of Hijrah during the ' Abbasid period, following the practices of speakers of other Semitic languages such as Aramaic, Hebrew, Syriac and Chaldean.

Distance kept the community of St Thomas Christians separate from other Christian communities until about the 8th century, when they started receiving bishops and support from the Chaldean Church.

*** The Assyrian Church of the East, the continuation of the Church of the East, which emerged from the split with the Chaldean Church in the 16th century

The Neo-Babylonian Empire | Chaldean Empire around 600 BC.

Though conquerors, the Chaldeans were rapidly and completely assimilated into the dominant Babylonian culture, as the Amorites before them had been, and after the fall of Babylon in 539 BC the term " Chaldean " was no longer used to describe a specific race of people, but rather a " socio-Economic " class, regardless of ethnicity.

The Chaldeans briefly regained control of Babylon in 693 BC when the populace deposed Nergal-ushezib, and chose Mushezib-Marduk, a Chaldean prince to replace him.

It was only after 620 BC under Nabopolassar that the Chaldeans finally gained control over Babylon, founding the Chaldean Dynasty.

The Medes, Persians, Chaldean ruled Babylonians, together with the Scythians and Cimmerians attacked Assyria in 616 BC, and by 612 BC, after five years of bitter fighting, the alliance had sacked Nineveh, killing Sin-shar-ishkun in the process.

It is known to have been in use by the Roman era, based on concepts inherited by Hellenistic astronomy from Babylonian astronomy of the Chaldean period ( mid-1st millennium BC ), which, in turn, derived from an earlier system of lists of stars along the ecliptic.

During the first of these ( 745 BC ) he sacked Rabbilu and Hamranu, abducted the gods of Šapazza, subjugated numerous Aramean tribes and destroyed the capital of the Chaldean tribe the Bit-Shilani, Sarrabanu, impailing its leader, Nabû-ušabši.

For instance, the death of the Chaldean King Nebuchadnezzar II ( who conquered Jerusalem in 586 BC ) could be correlated with the 37th year of the exile of Jehoiachin ( 2 Kings 25: 27 ).

* The Chaldean Oracles played a role in Hellenistic mystery religions of the 1st centuries BC and AD.

) ( reigned 722 BC – 710 BC, 703 BC – 702 BC ) was a Chaldean prince who usurped the Babylonian throne in 721 BC.

Because the book of Habbakuk consists of five oracles about the Chaldeans ( Babylonians ), and the Chaldean rise to power is dated circa 612 BCE, it is assumed he was active about that time, making him an early contemporary of Jeremiah and Zephaniah.

The empire fell in 608 BCE with the death of Ashur-uballit II after a period of internal strife followed by an attack by a coalition of Babylonians, Medes, Scythians, Persians and Cimmerians led by Nabopolassar, the Chaldean ruler of Babylon and Cyaxares of Media / Persia.

When the Babylonian Empire empire was absorbed into the Persian Achaemenid Empire, the name " Chaldean " lost its meaning as the name of a race of men, and came to be applied only to a social class.

The terms Oriental Catholic and Eastern Catholic include these, but are broader, since they also cover Catholics who follow the Alexandrian, Antiochian, Armenian and Chaldean liturgical traditions.

This group had a faltering start but has existed as a separate church since the consecration of Yohannan Sulaqa as Chaldean Patriarch of Babylon in 1553 by the pope.

* Chaldean Catholic Church ( since 1553 )

On Friday, June 10, 2011, Pope Benedict XVI, erected a new Chaldean Catholic eparchy in Toronto, Canada and named Archbishop Mar Yohannan Zora, who has worked alongside four priests with Catholics in Toronto ( the largest community of Chaldeans ) for nearly 20 years and who was previously an ad personam Archbishop ( he will retain this rank as head of the eparchy ) and the Archbishop of the Archdiocese ( Archeparchy ) of Ahwaz, Iran ( since 1974 ).