723
Encyclopedia
Year 723 was a common year starting on Friday
Common year starting on Friday
This is the calendar for any common year starting on Friday, January 1 . Examples: Gregorian years 1993, 1999, 2010 and 2021or Julian years 1910 and 1899 ....

 (link will display the full calendar) of the Julian calendar
Julian calendar
The Julian calendar began in 45 BC as a reform of the Roman calendar by Julius Caesar. It was chosen after consultation with the astronomer Sosigenes of Alexandria and was probably designed to approximate the tropical year .The Julian calendar has a regular year of 365 days divided into 12 months...

. The denomination 723 for this year has been used since the early medieval period, when the Anno Domini
Anno Domini
and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....

 calendar era
Calendar era
A calendar era is the year numbering system used by a calendar. For example, the Gregorian calendar numbers its years in the Western Christian era . The instant, date, or year from which time is marked is called the epoch of the era...

 became the prevalent method in Europe for naming years.

Religion

  • Saint Boniface
    Saint Boniface
    Saint Boniface , the Apostle of the Germans, born Winfrid, Wynfrith, or Wynfryth in the kingdom of Wessex, probably at Crediton , was a missionary who propagated Christianity in the Frankish Empire during the 8th century. He is the patron saint of Germany and the first archbishop of Mainz...

     fells Thor's Oak
    Thor's Oak
    The Donar Oak was a legendary oak tree sacred to the Germanic tribe of the Chatti, ancestors of the Hessians, and an important sacred site of the pagan Germanic peoples....

     near Fritzlar
    Fritzlar
    Fritzlar is a small German town in the Schwalm-Eder district in northern Hesse, north of Frankfurt, with a storied history. It can reasonably be argued that the town is the site where the Christianization of northern Germany began and the birthplace of the German empire as a political entity.The...

    , marking the decisive event in the Christianization
    Christianization
    The historical phenomenon of Christianization is the conversion of individuals to Christianity or the conversion of entire peoples at once...

     of the northern Germanic tribes.

Technology

  • The world's first mechanical clock is allegedly built in China
    China
    Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

     (See celestial globe).

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