List of time periods - Specialist human periods

The "human" timescale covers the time that humans have existed, usually taken to be from about 250,000 years ago - when Homo Sapiens began to develop. It is broadly divided into prehistorical (before history began to be recorded) and historical periods (when written records began to be kept). List of time periods - Calendar systems. Common Era List of time periods - Human historical periods. Prehistoric Prehistoric Europe Stone AgeSee also:

List of time periods, List of time periods - Cosmological time periods, List of time periods - Geologic time periods, List of time periods - Human time periods, List of time periods - Calendar systems, List of time periods - Human historical periods, List of time periods - Mythological and astrological time periods, List of time periods - Specialist human periods

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The geologic timescale covers the extent of the existence of Earth, from about 4600 million years ago to the present day. It is used to consider the formation and change of the Earth itself, and large-scale changes in the planet's inhabitants. Dates are given as Millions of Years Ago (MYA). (4600-544 MYA) (4600-3800 MYA) (3800-2500 MYA) (2500-544 MYA) (544 MYA - now) (544-245 MYA)< ...

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List of time periods, List of time periods - Cosmological time periods, List of time periods - Geologic time periods, List of time periods - Human time periods, List of time periods - Calendar systems, List of time periods - Human historical periods, List of time periods - Mythological and astrological time periods, List of time periods - Specialist human periods

Read more here: » List of time periods: Encyclopedia II - List of time periods - Geologic time periods