Geological Time

  • Period: 4250 BCE to

    Meghalayan Age

  • Period: 4249 BCE to 2152 BCE

    Lowhistoric Subage

  • Period: 2151 BCE to 27 BCE

    Midhistoric Subage

  • Period: 26 BCE to

    Highhistoric Subage

  • Period: 25 BCE to 476

    Romanic Period

  • Period: 477 to 1492

    Medieval Period

  • Period: 1493 to

    Modern Period

  • Period: 1494 to

    Colonial Subperiod

  • Period: to

    Modern Subperiod

  • Period: to

    Washingtonic Centipoch

  • Period: to

    Lincolnic Centipoch

  • Period: to

    Modern Centipoch

  • Period: to

    Reaganic Subcentipoch

  • Period: to

    Posthitlerian Millipoch

  • Period: to

    Martinian Millipoch

  • Period: to

    Carterian Millipoch

  • Period: to

    Reaganic Millipoch

  • Period: to

    Millenial Subcentipoch

  • Period: to

    Clintonic Millipoch

  • Period: to

    Seconbushic Millipoch

  • Period: to

    Obamian Millipoch