The year 645 BC was a year of the pre-Julian Roman calendar. In the

Roman Empire The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of ...

, it was known as year 109 ''

Ab urbe condita ''Ab urbe condita'' (; 'from the founding of Rome, founding of the City'), or (; 'in the year since the city's founding'), abbreviated as AUC or AVC, expresses a date in years since 753 BC, 753 BC, the traditional founding of Rome. It is ...

'' . The denomination 645 BC for this year has been used since the early medieval period, when the

Anno Domini The terms (AD) and before Christ (BC) are used when designating years in the Gregorian calendar, Gregorian and Julian calendar, Julian calendars. The term is Medieval Latin and means "in the year of the Lord" but is often presented using "o ...

calendar era A calendar era is the period of time elapsed since one '' epoch'' of a calendar and, if it exists, before the next one. For example, the current year is numbered in the Gregorian calendar, which numbers its years in the Western Christian era ...

became the prevalent method in Europe for naming years.

Events

* The

Spring and Autumn Annals The ''Spring and Autumn Annals'' is an ancient Chinese chronicle that has been one of the core Chinese classics since ancient times. ''The Annals'' is the official chronicle of the State of Lu, and covers a 242-year period from 722 to 481&nbs ...

, a Chinese book of records, mentions that on December 24 of this year there were five meteors in the sky. It was the first Chinese observation of meteors.

Births

Deaths

Guan Zhong Guan Zhong (; c. 720–645 BC) was a Chinese philosopher and politician. He served as chancellor and was a reformer of the State of Qi during the Spring and Autumn period of Chinese history. His given name was Yiwu (). ''Zhong'' was his courtes ...

, prime minister of Qi * Archilochos, Greek poet

References

Years of the 7th century BC {{BC-year-stub