Aeschylus (, Aiskhulos ; c. 525 / 524 BC – c. 456 / 455 BC ) was the first of the three ancient Greek tragedians whose plays can still be read or performed, the others being Sophocles and Euripides.

No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 453 – 456.

No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 456 – 479.

Henry Barclay Swete's Introduction to the Old Testament in Greek, pages 456 – 457 states:

The earliest dates to prehistoric or legendary pasts, from the time of Yūryaku ( r .? 456 –? 479 ) to those of the little documented Yōmei ( r. 585 – 587 ), Saimei ( r. 594 – 661 ), and finally Tenji ( r. 668 – 671 ) during the Taika Reforms and the time of Fujiwara no Kamatari ( 614 – 669 ).

* 456 – The Visigoths brutally sack the Suebi's capital of Braga ( Portugal ), churches are burnt to the ground.

* 456 – The Visigoths under king Theodoric II, acting on orders of the Roman emperor Avitus, invade Spain with an army of Burgundians, Franks and Goths, led by the kings Chilperic I and Gondioc.

* 456 – Magister militum Ricimer defeats Emperor Avitus at Piacenza and becomes master of the Western Roman Empire.

* Darlington, Oscar G. " Gerbert, the Teacher ," The American Historical Review ( Volume 52, Number 3, 1947 ): 456 – 476.

* 456 – Remistus, Roman general ( magister militum ), is besieged with a Gothic force at Ravenna and later executed in the Palace in Classis, outside the city.

The 15 – 60 year old adult mortality ( the probability of dying between the ages 15 – 60 ) in 2009 was 456 / 1000 for men and 311 / 1000 for women.

* Darlington, Oscar G. " Gerbert, the Teacher ", The American Historical Review ( Volume 52, Number 3, 1947 ): 456 – 476.

* Aeschylus of Athens, playwright ( 525 – 456 BC )

Emperor Emperor Yūryaku | Yūryaku ( 456 – 479 )

Following the Migrations Period and the fall of the Western Roman Empire, in the middle of the 5th century, Pannonia was ceded to the Huns by Theodosius II, and after the death of Attila successively passed ( entirely or partially ) into the hands of the Ostrogoths ( 456 – 6th century ), Lombards ( 530 – 68 ), and Gepids ( 6th century ).

* 456 BC – Aeschylus, Greek playwright ( b. 525 BC )

* Popper, K., " On the Use and Misuse of Imaginary Experiments, Especially in Quantum Theory ", pp. 442 – 456, in Popper, K., The Logic of Scientific Discovery, Harper Torchbooks, ( New York ), 1968.

The " Three Giants of Yuanjia ," Bao Zhao 鮑照 ( d. 466 ), Xie Lingyun 謝霊運 ( 385 – 433 ), and Yan Yanzhi 顏延之 ( 384 – 456 ) are perhaps the most famous poets of the Song, each of them being credited as the originators of the three major literary trends to follow.

* Battle of Órbigo 456

* 456, Visigoths defeat the Suebic Kingdom of Galicia in the Battle of Órbigo.

In 456 the Visigothic army was too heavily engaged in Hispania to be an effective threat to Italia, and Ricimer had just destroyed a pirate fleet of sixty Vandal ships ; Majorian and Ricimer marched against Avitus and defeated him near Placentia.

Flavius Ricimer ( c. 405 – August 18, 472 ) ) was a Romanized Germanic general who effectively ruled the remaining territory of the Western Roman Empire from 456 until his death in 472.

Ricimer had the Roman Senate depose Avitus and ordered the murder of the magister militum Remistus in the Palatium at Classe, ancient port of Ravenna, on 17 September 456.

The Emperor and his army entered the city and attacked the huge army led by Ricimer, but after a great massacre of his men, including Messianus, Avitus fled on 17 or 18 October 456.

A second group of 5, 000, led by Ezra and Nehemiah, returned to Judah in 456 BCE although non-Jews wrote to Cyrus to try to prevent their return.

In 1997 there were 222, 456 telephones ; by 1999, 300, 066 lines were in use.

The last indication that the Goths whose king reigned at Toulouse considered themselves Vesi is found in a panegyric on Avitus by Sidonius Apollinaris dated 1 January 456.

The combined total for Europe and Africa is 58, 637 Another estimate ( by the UK War Office in 1922 ) was 13, 716 killed and 24, 456 missing up until November 11, 1918.

In 456 it was taken and destroyed by the Vandals under Gaiseric, but must have been soon rebuilt.

Attended by less than 25 % of the islands ' electorate, Puerto Rican voters approved the change to a unicameral legislature by 456, 267 votes in favor, versus 88, 720 against.

The Apsley Gorge National Park of 6, 718 hectares was gazetted followed by the 3, 456 hectare Yarrowitch Gorge National Park soon after.

There were 1, 539 housing units at an average density of 1, 456. 5 per square mile ( 562. 4 / km² ), of which 601 ( 40. 9 %) were owner-occupied, and 869 ( 59. 1 %) were occupied by renters.

There were 10, 806 housing units at an average density of 456. 2 per square mile ( 176. 1 / km² ), of which 7, 329 ( 73. 3 %) were owner-occupied, and 2, 663 ( 26. 7 %) were occupied by renters.

There were 3, 057 housing units at an average density of 1, 180. 9 per square mile ( 456. 0 / km² ), of which 1, 604 ( 56. 7 %) were owner-occupied, and 1, 227 ( 43. 3 %) were occupied by renters.

There were 1, 279 housing units at an average density of 515. 6 per square mile ( 199. 1 / km² ), of which 694 ( 60. 3 %) were owner-occupied, and 456 ( 39. 7 %) were occupied by renters.

In History of Political Philosophy, third edition, edited by Leo Strauss and Joseph Cropsey, 456 – 475.

The Greek playwright Aeschylus was said to have been killed in 456 or 455 BC by a tortoise dropped by an eagle who mistook his bald head for a stone – if this incident did occur, the Lammergeier is a likely candidate for the " eagle ".

This is especially true of the narrative climax of his account, the sack in 456 of the Suevi capital at Braga by the Visigothic king Theodoric II, acting in the service of the Roman emperor Avitus.

After the war, a survey by the Veteran's Administration of the members of the American Board of Psychiatry and Neurology found that 48 were neurologists and 456 were psychiatrists.

* Sartre: The Philosopher of the Twentieth Century, translated by Andrew Brown, Polity Press, July 2003, hardcover, 456 pages, ISBN 0-7456-3009-X

( Note that string types used in the last case do not, by themselves, lend themselves to the programmer naturally assuming concatenation, rather than addition, is meant ; consider " 123 " + " 456 ", which might reasonably be expected to yield " 579 ".

The total number of Ottoman troops bottled up in Medina by the time of the surrender were 456 officers and 9, 364 soldiers.

* Hasselquist, Fredrik, Carl von Linné ( 1766 ): Voyages and Travels in the Levant in the Years 1749, 50, 51, 52: Containing Observations in Natural History, Physick, Agriculture, and Commerce, Particularly on the Holy Land, and the Natural History of the Scriptures Published by Printed for L. Davis and C. Reymers, 456 pages