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  2. 69 BC - Wikipedia

    en.wikipedia.org/wiki/69_BC

    Year 69 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Hortensius and Metellus (or, less frequently, year 685 Ab urbe condita ). The denomination 69 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe ...

  3. List of time periods - Wikipedia

    en.wikipedia.org/wiki/List_of_time_periods

    Long nineteenth century (1789–1914) Georgian era (the United Kingdom, 1714–1830) Industrial Revolution (Europe, United States, and elsewhere 18th and 19th centuries, though with its beginnings in Britain)

  4. Calendar era - Wikipedia

    en.wikipedia.org/wiki/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. [1] For example, it is the year 2025 as per the Gregorian calendar, which numbers its years in the Western Christian era (the Coptic Orthodox and Ethiopian Orthodox churches have their own Christian eras).

  5. Detailed logarithmic timeline - Wikipedia

    en.wikipedia.org/wiki/Detailed_logarithmic_timeline

    1.1 13,800 million years ago to 5,500 million years ago. 1.2 5,500 million years ago to 1,800 million years ago. ... Carbon dioxide levels like today for long period, ...

  6. History of calendars - Wikipedia

    en.wikipedia.org/wiki/History_of_calendars

    In the so-called five-phase calendar, the year consists of 10 months and a transition, each month being 36 days long, and the transitions 5 or 6 days. During the Warring States period (~475–220 BC), the primitive lunisolar calendars were established under the Zhou Dynasty, known as the six ancient calendars ( simplified Chinese : 古六历 ...

  7. Holocene calendar - Wikipedia

    en.wikipedia.org/wiki/Holocene_calendar

    The Holocene calendar, also known as the Holocene Era or Human Era (HE), is a year numbering system that adds exactly 10,000 years to the currently dominant (AD/BC or CE/BCE) numbering scheme, placing its first year near the beginning of the Holocene geological epoch and the Neolithic Revolution, when humans shifted from a hunter-gatherer lifestyle to agriculture and fixed settlements.

  8. 70 BC - Wikipedia

    en.wikipedia.org/wiki/70_BC

    Depiction of Virgil (70–19 BC). Year 70 BC was a year of the pre-Julian Roman calendar.At the time it was known as the Year of the Consulship of Pompeius and Crassus (or, less frequently, year 684 Ab urbe condita).

  9. Year of the Four Emperors - Wikipedia

    en.wikipedia.org/wiki/Year_of_the_Four_Emperors

    The Year of the Four Emperors, AD 69, was the first civil war of the Roman Empire, during which four emperors ruled in succession: Galba, Otho, Vitellius, and Vespasian. [1]