Year 678 (DCLXXVIII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. The denomination 678 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.

Millennium: 1st millennium
678 in various calendars
Gregorian calendar678
Ab urbe condita1431
Armenian calendar127
Assyrian calendar5428
Balinese saka calendar599–600
Bengali calendar85
Berber calendar1628
Buddhist calendar1222
Burmese calendar40
Byzantine calendar6186–6187
Chinese calendar丁丑(Fire Ox)
3374 or 3314
    — to —
戊寅年 (Earth Tiger)
3375 or 3315
Coptic calendar394–395
Discordian calendar1844
Ethiopian calendar670–671
Hebrew calendar4438–4439
Hindu calendars
 - Vikram Samvat734–735
 - Shaka Samvat599–600
 - Kali Yuga3778–3779
Holocene calendar10678
Iranian calendar56–57
Islamic calendar58–59
Japanese calendarN/A
Javanese calendar570–571
Julian calendar678
Korean calendar3011
Minguo calendar1234 before ROC
Nanakshahi calendar−790
Seleucid era989/990 AG
Thai solar calendar1220–1221
Tibetan calendar阴火牛年
(female Fire-Ox)
804 or 423 or −349
    — to —
(male Earth-Tiger)
805 or 424 or −348
Pope Agatho I (678–681)


By placeEdit

Byzantine EmpireEdit



  • April 27 – Emperor Tenmu holds divination for the purpose of proceeding to the Abstinence Palace.
  • May 3 – Princess Tōchi suddenly takes ill and dies within the palace. Tenmu, her father, is unable to sacrifice to the Gods of Heaven and Earth.
  • May 10 – Tōchi is buried at a place which could be Akō (Hyōgo Prefecture). Tenmu is graciously pleased to raise lament for her.

By topicEdit


  • Wilfrid, bishop of York, is at the height of his power and owns vast estates throughout Northumbria. After his refusal to agree to a division of his see, Ecgfrith and Theodore, archbishop of Canterbury, have him banished from Northumbria.
  • April 11Pope Donus dies at Rome, after a reign of 1 year and 160 days. He is succeeded by Agatho I, who becomes the 79th pope. He is the first pope to stop paying tribute to Emperor Constantine IV upon election.
  • In Japan, the national worshiping to the Gods of Heaven and Earth is planned. Tenmu tries to select his daughter Tōchi as a Saiō to make her serve the Gods. However, Tōchi suddenly takes ill and dies.
  • The Beomeosa temple complex in Geumjeong-gu (modern South Korea) is constructed, during the reign of King Munmu of Silla.




  1. ^ Haldon (1990), p. 64; Lilie (1976), pp. 78-79; Treadgold (1997), pp. 326-327; Mango & Scott (1997), p. 494