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  2. Sexagenary cycle - Wikipedia

    en.wikipedia.org/wiki/Sexagenary_cycle

    The sexagenary cycle, also known as the ganzhi or stems-and-branches is a cycle of sixty terms, each corresponding to one year, thus a total of sixty years for one cycle, historically used for recording time in China and the rest of the East Asian cultural sphere and Southeast Asia. [1]

  3. Saraiva-Cotegipe Law - Wikipedia

    en.wikipedia.org/wiki/Saraiva-Cotegipe_Law

    The Saraiva-Cotegipe Law (Portuguese: Lei Saraiva-Cotegipe), also known as the Sexagenarian Law (Lei dos Sexagenários), officially Law No. 3,270 of 28 September 1885, was a Brazilian law enacted on 28 September 1885 that granted freedom to slaves aged 60 or older. Before the release, there would be mandatory and free service, which would be ...

  4. List of time periods - Wikipedia

    en.wikipedia.org/wiki/List_of_time_periods

    Ancient history – Aggregate of past events from the beginning of recorded human history and extending as far as the Early Middle Ages or the Postclassical Era. The span of recorded history is roughly five thousand years, beginning with the earliest linguistic records in the third millennium BC in Mesopotamia and Egypt .

  5. Chronology - Wikipedia

    en.wikipedia.org/wiki/Chronology

    Consider, for example, the use of a timeline or sequence of events. It is also "the determination of the actual temporal sequence of past events". [3] Chronology is a part of periodization. It is also a part of the discipline of history including earth history, the earth sciences, and study of the geologic time scale.

  6. Timeline - Wikipedia

    en.wikipedia.org/wiki/Timeline

    Joseph Priestley's A New Chart of History, 1765. The bronze timeline "Fifteen meters of History" with background information board, Örebro, Sweden. A timeline is a list of events displayed in chronological order. [1] It is typically a graphic design showing a long bar labelled with dates paralleling it, and usually contemporaneous events.

  7. List of timelines - Wikipedia

    en.wikipedia.org/wiki/List_of_timelines

    ChronoZoom is a timeline for Big History being developed for the International Big History Association by Microsoft Research and University of California, Berkeley Asian Studies online: a timeline of major developments

  8. Geologic time scale - Wikipedia

    en.wikipedia.org/wiki/Geologic_time_scale

    The definition of standardised international units of geologic time is the responsibility of the International Commission on Stratigraphy (ICS), a constituent body of the International Union of Geological Sciences (IUGS), whose primary objective [1] is to precisely define global chronostratigraphic units of the International Chronostratigraphic ...

  9. List of decades, centuries, and millennia - Wikipedia

    en.wikipedia.org/wiki/List_of_decades,_centuries...

    Timelines of world history; List of timelines; Chronology; See calendar and list of calendars for other groupings of years. See history, history by period, and periodization for different organizations of historical events. For earlier time periods, see Timeline of the Big Bang, Geologic time scale, Timeline of evolution, and Logarithmic timeline