Around 1971, the Signetics Corporation introduced the 555 timer IC.

: Around this time, according to popular opinion, a certain outlaw named Robin Hood, with his accomplices, infested Sherwood and other law-abiding areas of England with continuous robberies.

#: Around 1983 – 1984 a new color identification standard (" Line SECAM or SECAM-H ") has been introduced in order to make more space available inside the signal for adding teletext information ( originally according to the Antiope standard ).

Around 2001, Stethographics introduced PC-based software which enabled a phonocardiograph, graphic representation of cardiologic and pulmonologic sounds to be generated, and interpreted according to related algorithms.

Around the 1st century AD, according to Funan epigraphy and the records of Chinese historians ( Coedes ), a number of trading settlements of the South appear to have been organized into several Malay states, among the earliest of which are believed to be Langkasuka and Tambralinga.

Around 700 AD, Tai people who did not come under Chinese influence settled in what is now Dien Bien Phu in modern Vietnam according to the Khun Borom legend.

Around 11: 18 local time ( 08: 18 UTC ), a small craft approached the port side of the destroyer, and an explosion occurred, creating a 40-by-40-foot gash in the ship's port side, according to the memorial plate to those who lost their lives.

Around 387 BC, at the age of 23, he traveled with the physician Theomedon, who according to Diogenes Laërtius some believed was his lover, to Athens to study with the followers of Socrates.

Around the same time, he received a visit from a German missionary who, according to legend, survived an ordeal by fire, which convinced Harold to convert to Christianity.

Around 20 % of Irish people are affected by SAD, according to a survey conducted in 2007.

Around 500 BC the Fritzens-Sanzeno culture, also known as culture of the Raeti, after the goddess Raetia who according to roman authors was the main deity of the people inhabiting the region, succeeds both the Laugen-Melaun culture of the southern and the Urnfield culture of the northern part of Tyrol.

Around 1986 Johnston and Simmons began working on an album together ( according to a 1989 interview with Simmons ), but abandoned the project soon after with no known finished tracks.

Around 1650, according to Houbraken, he became a student of Rembrandt, eventually developing a close working relationship, painting history scenes, biblical compositions, symbolic studies of a solitary figure, as well as portraits.

Around this time she had a serious romance with David Niven, and according to his authorized biography, even wanted to marry him, but he wasn't faithful to her.

Around the same time, 13th century chronicler Matthew Paris wrote of the monks of St Albans Abbey " according to their custom, lived upon pasties of flesh-meat ".

Around the middle of the 2nd century BC, the Sibylline Oracles mention the " land of Gog and Magog " as " situated in the midst of Aethiopian rivers ", but in a second mention links it with the " Marsians and Dacians ", in eastern Europe ; in both cases they are about to receive " woe ," and according to Boe, " there can be little doubt about the direct use of Ezekiel's oracles " in their composition.

Around the year 1450, according to a 1524 letter of the Neapolitan humanist Pietro Summonte, he was a pupil of the painter Niccolò Colantonio at Naples, at the time one of the most active centres of Renaissance arts.

Around the year 455, Juvenal Patriarch of Jerusalem sent to Pope Leo I a fragment of the " precious wood ", according to the Letters of Pope Leo.

Around that time, according to the Byzantine Emperor Constantine VII, the Hungarians controlled the region on the border of modern Romania and Hungary along the rivers Timiş, Mureş, Criş, Tisa and Toutis.

Around 1417, ( or possibly 1404 ) as a direct result of his beliefs — which were considered blasphemous by contemporary religious authorities — Nesîmî was seized and, according to most accounts, skinned alive in Aleppo.

Around this time he was given the nickname " Nugget " because, according to Hearn, " you could put your case of money on him and you knew you were going to get paid.

Around 1825, according to Charles Babbage's autobiography, he invented the thaumatrope, which was later commercially publicised by Dr. John Ayrton Paris ( to whom the invention is more usually attributed ).

Around this time Bohemond left his wife Theodora, a niece of the recently-deceased Emperor Manuel, and married a woman named Sibylla, " who had the reputation of practicing evil arts " according to William of Tyre.

Around mid 1838 a war of extirpation, according to local magistrate Edmund Denny Day, was waged all along the Gwydir River.

Around 1400, the technique of the diminution motet became common: a long tenor color was repeated several times according to different mensuration rules, making its performance faster by a fixed proportion each time.

Around holiday developments such as Caleta de Fuste, water is relatively abundant, and dragonfly species including the Blue Emperor, Anax imperator and the Scarlet Darter, Crocothemis erythraea can be found.

Around 1439, Gutenberg was involved in a financial misadventure making polished metal mirrors ( which were believed to capture holy light from religious relics ) for sale to pilgrims to Aachen: in 1439 the city was planning to exhibit its collection of relics from Emperor Charlemagne but the event was delayed by one year due to a severe flood and the capital already spent could not be repaid.

Around 969, Emperor Nicephorus II Phocas rebuilt the fortifications on the acropolis and in part of the city.

Around the time of Jesus, the title divi filius ( son of the divine one ) was specially, but not exclusively, associated with Emperor Augustus ( as adopted son of Julius Caesar ).

Around 245, Emperor Philip entrusted Decius with an important command on the Danube.

Around 450, Western Roman Emperor Valentinian III considered the possibility of having his daughter Placidia marry Majorian.

Around 9 – 10 June in Prešov, meeting other Confederate leaders, he also met Joseph II, Holy Roman Emperor, who complimented him on his actions.

Around 215, it was named Colonia Aurelia Antoniana Ovilabis by Emperor Caracalla.

Around that time, Wang Fen ( 王芬 ) tried to recruit Cao Cao to join his coup to replace Emperor Ling with the Marquis of Hefei, but Cao Cao refused.

Around the winter of 194 BC, Liu Fei, the Prince of Qi, Emperor Gaozu's eldest son born to Lady Cao ( 曹氏 ), visited Chang ' an and he and Emperor Hui attended a banquet hosted by the empress dowager.

Around 184 BC Emperor Qianshao ( Liu Gong ) discovered that he was not Empress Dowager Zhang Yan's son, and his birth mother was executed by the empress dowager.

" Around the time of Emperor Yao's reign in China, a tribal nation which worshipped the sun grew strong and began to incorporate other primitive Korean tribes and began to build a confederacy of tribes.

Around 1125 Władysław married Agnes of Babenberg, daughter of Margrave Leopold III of Austria ; this union gave him a close connection with the Holy Roman Empire and the Kingdom of Germany: Agnes by her mother was a granddaughter of Emperor Henry IV and a half-sister of the Franconian duke Conrad III of Hohenstaufen, the later King of Germany.

Around AD 60, rumors were reported to Emperor Ming of Han that Ban was " privately revising the national history ", which caused the imperial court to become concerned about the type of account Ban would write of the fall of the Western Han and the rise of the Eastern Han.

Around the new year 808, Emperor Xianzong married his daughter Princess Puning to You Jiyou and sent much dowry with her.

After his defeat, Emperor Yuan grew despondent and ill. Around the new year of 323, he died.

Around 15 BC, the Romans under Emperor Augustus extended their empire to include the Alps and established the province of Noricum.

Around 630, during the reign of Byzantine Emperor Heraclius, Serbs and Croats ( Slavic tribes ) led by their respective aristocracies entered the western Balkans from the north, which was approved by the emperor.

Around 93, Emperor Domitian ( 81-96 ) expelled philosophers from Rome, including the Stoic philosopher Epiktetos, who went to Nicopolis where he died around AD 135.

Around 110, under Emperor Trajan ( 98-117 ), the Roman government carved out the province of Epiros from parts of Makedonia and Achaia, making it a separate province in its own right.

Around 193-198, Emperor Severus ( 193-211 ), based in Syria, campaigned in Mesopotamia, with indirect consequences for Achaia and Epirus: to help pay for these campaigns, Emperor Severus apparently required several cities to mint special coins, including Nicopolis, Patrae, Epidaurus, Apollonia, Thuria, Plautilla, and the Thessalia koinon.