The 620s decade ran from January 1, 620, to December 31, 629.
The 830s decade ran from January 1, 830, to December 31, 839.
The 720s decade ran from January 1, 720, to December 31, 729.
The 710s decade ran from January 1, 710, to December 31, 719.
The 700s decade ran from January 1, 700, to December 31, 709.
The 630s decade ran from January 1, 630, to December 31, 639.
Year 710 (DCCX) was a common year starting on Wednesday of the Julian calendar. The denomination 710 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 650s decade ran from January 1, 650, to December 31, 659.
The 660s decade ran from January 1, 660, to December 31, 669.
The 670s decade ran from January 1, 670, to December 31, 679.
The 690s decade ran from January 1, 690, to December 31, 699.
Year 634 (DCXXXIV) was a common year starting on Saturday of the Julian calendar. The denomination 634 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 709 (DCCIX) was a common year starting on Tuesday of the Julian calendar. The denomination 709 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.
700 (DCC) was a leap year starting on Thursday of the Julian calendar, the 700th year of the Common Era (CE) and Anno Domini (AD) designations, the 700th year of the 1st millennium, the 100th and last year of the 7th century, and the 1st year of the 700s decade. As of the start of 700, the Gregorian calendar was 3 days ahead of the Julian calendar, which was the dominant calendar of the time.
Year 654 (DCLIV) was a common year starting on Wednesday of the Julian calendar. The denomination 654 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 664 (DCLXIV) was a leap year starting on Monday of the Julian calendar. The denomination 664 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 667 (DCLXVII) was a common year starting on Friday of the Julian calendar. The denomination 667 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 676 (DCLXXVI) was a leap year starting on Tuesday of the Julian calendar. The denomination 676 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 726 (DCCXXVI) was a common year starting on Tuesday of the Julian calendar, the 726th year of the Common Era (CE) and Anno Domini (AD) designations, the 726th year of the 1st millennium, the 26th year of the 8th century, and the 7th year of the 720s decade. The denomination 726 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.
Heraclius was the brother of the Byzantine emperor Tiberius III and the Byzantine Empire's leading general during his reign. He scored a number of victories against the Umayyads, but was unable to halt the Arab conquest of Armenia, nor able to prevent the deposition of his brother by Justinian II, who later captured and executed both Tiberius and Heraclius.
