According to the legendary account in the Kojiki, Emperor Jimmu would have been born on 13 February 711 BC ( the first day of the first month of the Chinese calendar ), and died, again according to legend, on 11 March 585 BC ( both dates according to the lunisolar traditional Japanese calendar ).

According to the Kojiki, Jimmu died when he was 126 years old.

According to Nihongi, he had six wives ; but Kojiki only gives five wives, identifying the third consort to the sixth one.

According to the pseudo-historical Kojiki and Nihonshoki ( collectively known as ), Sujin was the second son of Emperor Kaika Sujin's mother was Ikagashikome no Mikoto, a stepmother of his father.

According to the Kojiki and Nihonshoki, he was the father of Emperor Ōjin.

According to the Kojiki and the Nihonshoki, Ōjin was the son of the Emperor Chūai and his consort Jingū.

According to Nihonshoki and Kojiki, Richū was the eldest son of Emperor Nintoku and Iwanohime.

According to Kojiki and Nihonshoki, he was the fourth son of Emperor Nintoku and his consort Iwanohime, and therefore a younger brother of his predecessor Emperor Hanzei.

According to Kojiki and Nihonshoki, Ankō was the second son of Emperor Ingyō.

According to Kojiki and Nihonshoki, Yūryaku was named Prince Ohatsuse Wakatake ( 大泊瀬 幼武 ) at birth.

According to Kojiki and Nihonshoki, he was a son of Emperor Yūryaku.

According to the Kojiki ( 712 ) and Nihon Shoki ( 720 ), Buretsu died without a successor, at which time a fifth generation grandson of Emperor Ōjin, Keitai, came and ascended the throne.

According to Kojiki and Nihon Shoki, his father was Hikoushi no Kimi and his mother was Furihime.

According to the Kojiki Ankan was the elder son of Emperor Keitai, who is considered to have ruled the country during the early-6th century, though there is a paucity of information about him.

According to the Nihon Shoki and Kojiki, a Korean scholar called Wani () was dispatched to Japan by the Kingdom of Baekje during the reign of Emperor Ōjin in the early 5th century, bringing with him knowledge of Confucianism and Chinese characters.

According to Kojiki and Nihon Shoki, the oldest record of a Silla immigrant is Amenohiboko, a legendary prince of Silla who settled to Japan at the era of Emperor Suinin, perhaps around the 3rd or 4th century.

According to Kojiki Nihon Shoki, In Emperor Ōjin's reign, Geunchogo of Baekje presented Stallions and Broodmares with Horse trainers to the Japanese emperor.

According to the Kojiki, Susanoo descended to the headwaters of the Hii River at Mount Sentsū, Okuizumo, Shimane | Okuizumo, Shimane Prefecture.

According to Kojiki, the god Susanoo encountered a grieving family of kunitsukami (" gods of the land ") headed by in Izumo province.

According to Kojiki, the oldest record of Japan, a Korean immigrant named Amenohiboko, prince of Silla came to Japan to serve the Japanese Emperor, and he lived in Tajima Province.

According to Shinto mythology as related in Kojiki, this is where the dead go to dwell and apparently rot indefinitely.

According to Kojiki, the entrance to Yomi lies in Izumo province and was sealed off by Izanagi upon his flight from Yomi, at which time he permanently blocked the entrance by placing a massive boulder ( Chibiki-no-Iwa 千引の岩 ) at the base of the slope that leads to Yomi ( Yomotsu Hirasaka 黄泉平坂 or 黄泉比良坂 ).

According to Kojiki, eight kinds Raijin was born from Izanami.

According to the Kojiki, Emperor Suinin ordered Tajima-mori to bring from the Eternal Land.

According to Suetonius in his De vita Caesarum ( The Lives of the Twelve Caesars ), written in the first century CE, the emperor Augustus sometimes presented old and exotic coins to friends and courtiers during festivals and other special occasions.

According to Strabo, by the time of emperor Augustus, up to 120 Roman ships were setting sail every year from Myos Hormos in Roman Egypt to India.

According to the Historia Augusta, the Roman emperor Hadrian issued a decree banning circumcision in the empire,

According to legend, he was the first Japanese emperor to drink tea.

According to Lampridius, the emperor Alexander Severus ( 222 – 235 ), who was not a Christian, had kept a domestic chapel for the veneration of images of deified emperors, of portraits of his ancestors, and of Christ, Apollonius, Orpheus and Abraham.

According to the 4th century Historia Augusta, the emperor Commodus participated in its mysteries but it never became one of the state cults.

According to Luther H. Martin, Roman Mithraism came to an end with the anti-pagan decrees of the Christian emperor Theodosius during the last decade of the 4th century.

According to tradition, San Marino was founded in 301 AD when a Christian stonemason named Marinus the Dalmatian, later venerated as Saint Marinus, emigrated in 257 AD from the Dalmatian island of Rab, then a Roman colony, when the emperor Diocletian issued a decree calling for the reconstruction of the city walls of Rimini which had been destroyed by Liburnian pirates.

According to, the Persian emperor, Cyrus the Great ( reigned 559 BCE – 530 BCE ), permitted the return of the exiles to their homeland and ordered the rebuilding of the Temple in Jerusalem ( Zion ).

According to Tamar's historian, the aim of the Georgian expedition to Trebizond was to punish the Byzantine emperor Alexius IV Angelus for his confiscation of a shipment of money from the Georgian queen to the monasteries of Antioch and Mount Athos.

According to the Nuremberg Chronicle of 1493 AD, the emperor martyred the Roman priest during a general persecution of Christians.

According to the chronist Bartholomew of Lucca, he discussed with Rudolph, in general terms at least, of splitting the German Empire into four separate kingdoms-Lombardy, Burgundy, Tuscia and Germany, where Rudolph's kingdom would be made hereditary in addition to himself becoming emperor.

According to the terms of the late emperor's will ( Go-Saga died in 1272 ), in 1274, he would became emperor upon the death or abdication of Emperor Kameyama.

According to a reconstructed inscription found on the site, " the emperor Vespasian ordered this new amphitheatre to be erected from his general's share of the booty.

According to those historians who believe that Olybrius was Petronius ' son, it was in 455 that Olybrius married Placidia, in particular between April 17, when Petronius was acclaimed Emperor, and May 31, when he died ; this would explain the marriage between Olybrius and Valentinian's younger daughter as a move to secure Petronius ' legitimacy as emperor.

According to tradition, in the 3rd century, the Sassanian emperor Ardashir I ( r. 226-241 AD ) commanded his high priest Tonsar ( or Tansar ) to compile the theological texts.

According to John of Ephesus, he was the first heir born to a reigning emperor since the reign of Theodosius II ( 408 – 450 ).

According to Brown and Gilman, usage of the plural to the Roman emperor began in the fourth century AD.

According to a popular legend, the capital was moved when the emperor's advisers brought the emperor to the hills surrounding Nanjing and pointed out the emperor's palace showing the vulnerability of the palace to artillery attack.

According to Jordanes, he negotiated a peace with the new emperor, Theodosius I, that made some Thervings foederati, or official allies of Rome allowed to settle on Roman soil as a state within a state.

According to John Zonaras, the commander of the Praetorian Guard Marcus Aurelius Carus had been proclaimed, more or less unwillingly, emperor by his troops.

According to Edward Gibbon, Valentinian III was a poor emperor:

According to the text: the empress Justina " became known to Marina Severa, wife of the emperor Valentinian, and had frequent intercourse with the empress, until their intimacy at length grew to such an extent that they were accustomed to bathe together.

) According to Suetonius, the Octavian family held some renown there, and Gaius Octavius ( father of the future Caesar Augustus ) defeated a Spartacist army near there ; as a result, the future emperor was granted the surname Thurinus shortly after birth.