The 400s decade ran from January 1, 400, to December 31, 409.
The 380s decade ran from January 1, 380, to December 31, 389.
The 430s decade ran from January 1, 430, to December 31, 439.
The 510s decade ran from January 1, 510, to December 31, 519.
The 420s decade ran from January 1, 420, to December 31, 429.
Year 431 (CDXXXI) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Bassus and Antiochus. The denomination 431 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The 450s decade ran from January 1, 450, to December 31, 459.
Year 451 (CDLI) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Marcianus and Adelfius. The denomination 451 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 450 (CDL) was a common year starting on Sunday of the Julian calendar, the 450th Year of the Common Era (CE) and Anno Domini (AD designations, the 450th year of the 1st millennium, the 50th year of the half of 5th century, and the 1st year of the 450s decade. At the time, it was known as the Year of the Consulship of Valentinianus and Avienus. The denomination 450 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The 390s decade ran from January 1, 390 to December 31, 399
The 440s decade ran from January 1, 440, to December 31, 449.
The 460s decade ran from January 1, 460, to December 31, 469.
The 340s decade ran from January 1, 340, to December 31, 349.
Year 518 (DXVIII) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Paulus without colleague. The denomination 518 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The 370s decade ran from January 1, 370, to December 31, 379.
Year 370 (CCCLXX) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Valens. The denomination 370 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 337 (CCCXXXVII) was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Felicianus and Titianus. The denomination 337 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 433 (CDXXXIII) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Theodosius and Maximus. The denomination 433 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 445 (CDXLV) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Valentinianus and Nomus. The denomination 445 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The Second Council of Ephesus was a Christological church synod in 449 convened by Emperor Theodosius II under the presidency of Pope Dioscorus I of Alexandria. It was intended to be an ecumenical council, and it is accepted as such by the miaphysite churches but was rejected by Chalcedonian Christians. It was explicitly repudiated by the next council, the Council of Chalcedon of 451, recognised as the fourth ecumenical council by Chalcedonian Christians, and it was named the Latrocinium by Pope Leo I; the Chalcedonian churches, particularly the Roman Catholic and Eastern Orthodox communions, continue to accept this designation, while the Oriental Orthodox repudiate it.
