The United States Naval Observatory began the A. 1 scale 13 September 1956, using an Atomichron commercial atomic clock, followed by the NBS-A scale at the National Bureau of Standards, Boulder, Colorado.

On September 13, 1861, in view of the decision of the Kentucky legislature to side with the Union after the occupation of Columbus by Polk, Johnston ordered Brig.

The city and its fortified sourroundings were encircled 13 September – 16 October 1944 by the US 1st Infantry Division and 3rd Armored Division in conjunction with the US 2nd Armored Division and 30th Infantry Division during the prolonged Battle of Aachen, later reinforced by US 28th Infantry Division elements.

Therefore, on 13 September the cabinet dismissed Count Detlev von Einsiedel, followed by Bernhard von Lindenau.

Clinton, Yitzhak Rabin and Yasser Arafat during the Oslo Accords on 13 September 1993.

In 1893, the Badminton Association of England published the first set of rules according to these regulations, similar to today's rules, and officially launched badminton in a house called " Dunbar " at 6 Waverley Grove, Portsmouth, England on September 13 of that year.

The Orioles won their 81st game on September 13, ending the streak of 14 straight years with a losing record, as well as ensuring that the team would spend the entire year with a record of. 500 or higher.

Unable, however, to resist the urging of Charles V, the pope, after proposing Mantua as the place of meeting, convened the council at Trent ( at that time a free city of the Holy Roman Empire under a prince-bishop ), on December 13, 1545 ; the Pope's decision to transfer it to Bologna in March, 1547 on the pretext of avoiding a plague failed to take effect and the Council was indefinitely prorogued on 17 September 1549.

Cesare Borgia (;, ; 13 September 1475 or April 1476 – 12 March 1507 ), Duke of Valentinois, was an Italian condottiero, nobleman, politician, and cardinal.

Each year, the Eastern Orthodox Church celebrates the anniversary of the consecration of the Church of the Resurrection ( Holy Sepulchre ) on September 13 ( for those churches which follow the traditional Julian calendar, September 13 currently falls on September 26 of the modern Gregorian calendar ).

It was AT & T's registered trademark from September 4, 1962 to March 13, 1984, and is standardized by ITU-T Recommendation Q. 23.

On 13 September 81 after barely two years in office, he unexpectedly died of fever during a trip to the Sabine territories.

A 10 % value-added tax ( VAT ), implemented in September 1992, was raised to 13 % in July 1995.

Edward Vincent " Ed " Sullivan ( September 28, 1901 – October 13, 1974 ) was an American entertainment writer and television host, best known as the presenter of the TV variety show The Ed Sullivan Show.

As a result of this, Key was unable to do anything but watch the bombarding of the American forces at Fort McHenry during the Battle of Baltimore on the night of September 13 – 14, 1814.

The Marlins led the NL wild-card race as late as September 13, then lost 12 of their next 14 games.

Retrieved 13 September 2011.

Friedrich August Kekule von Stradonitz ( also August Kekulé ; ) ( 7 September 1829 – 13 July 1896 ) was a German organic chemist.

# On 15 September 1790, to his double first cousin Maria Teresa of the Two Sicilies ( 6 June 1772 – 13 April 1807 ), daughter of King Ferdinand I of the Two Sicilies ( both were grandchildren of Empress Maria Theresa and shared all of their other grandparents in common ), with whom he had twelve children, of whom only seven reached adulthood.

Frasier is an American sitcom that was broadcast on NBC for eleven seasons from September 16, 1993, to May 13, 2004.

* 509 BC – The Temple of Jupiter Optimus Maximus on Rome's Capitoline Hill is dedicated on the ides of September.

The building was supposedly begun by king Tarquinius Priscus, completed by the last king ( Tarquinius Superbus ) and inaugurated in the early days of the Roman Republic ( September 13, 509 BC ).

* The New Moon ( Sigmund Romberg )-Broadway production opened at the Imperial Theatre on September 19, transferred to the Casino Theatre on November 18 and ran for a total of 509 performances.

In, he batted. 323, with a. 432 OBP and. 508 slugging percentage in 509 at bats for the New Britain Rock Cats to earn Eastern League ( Double-A ) All-Star honors, and a September call-up to the Twins.

In 1964, The Beatles performed two sold out shows to nearly 30, 000 audience members September 3 and, in 1989, New Kids on the Block set a Grandstand attendance record with 18, 509 audience members.

It was said that the Temple of Jupiter was dedicated on September 13, the year of the Roman Republic, c. 509 BC.

* Jensen GT: September 1975 – May 1976 ; VIN 3000 – 30510 ( 509 manufactured )

* 2 / 509 PIR Parachuted onto Avellino on 14 September 1943.

* 509 PIB engaged in Rhineland Campaign on 5 September 1944.

Augustus (, September 23, 63 BC – August 19, 14 AD ) was the founder of the Roman Empire and its first Emperor, ruling from 27 BC until his death in 14 AD.

While his paternal family was from the town of Velletri, about from Rome, Augustus was born in the city of Rome on 23 September 63 BC.

| DATE OF BIRTH = 23 September 63 BC

Actium is chiefly famous as the site of Octavian's decisive victory over Mark Antony ( September 2, 31 BC ).

Pompey was assassinated on 3 September 48 BC.

Philipp August Böckh in 1855 concluded that the battle took place on September 12, 490 BC in the Julian calendar, and this is the conventionally accepted date.

The battle took place on 2 September 31 BC, on the Ionian Sea near the city of Actium, at the Roman province of Epirus vetus in Greece.

The two fleets met outside the Gulf of Actium ( Today Preveza city, Greece ), on the morning of 2 September 31 BC.

On Caesar's return to Italy in September 45 BC, he filed his will, naming his grandnephew Gaius Octavius ( Octavian ) as the heir to everything, including his name.

Tarquinius returned to Rome and celebrated a triumph for his victories over the Sabines which, according to the Fasti Triumphales, occurred on 13 September 585 BC.

Antony made peace with Octavian in September 40 BC and married Octavian's sister Octavia Minor.

* The Roman Army at War 100 BC – AD 200 ( Oxford, September 1998 ) by Adrian Goldsworthy

In Latin, septem means " seven " and septimus means " seventh "; September was in fact the seventh month of the Roman calendar until 46 BC, when the first month changed from Kalendas Martius ( 1 March ) to Kalendas Januarius ( 1 January ).

Publius Vergilius Maro ( October 15, 70 BC – September 21, 19 BC ), usually called Virgil or Vergil in English, was an ancient Roman poet of the Augustan period.

In the Battle of Alesia ( September, 52 BC ), Caesar built a fortification around the city to besiege it.

* September 23, 480 BC: Battle of Salamis between Greece and Persia, leading to a Greek victory

* September 29 – Pompey, Roman politician ( assassinated ) ( b. 106 BC )

* September 29 – Pompey the Great, Roman general and politician ( d. 48 BC )

Virgil crossed to Italy by ship, weakened with disease, and died in Brundisium harbour on 21 September 19 BC, leaving a wish that the manuscript of the Aeneid was to be burned.

* September 28, 551 BC — Birth of Confucius, philosopher ( traditional date ).