Periodizations can provide a convenient segmentation of time, wherein events within the period might consist of relatively similar characteristics. However, determining the precise beginning and ending of any 'period' is often arbitrary, since it has changed over time and over the course of history. Systems of periodization are more or less arbitrary, yet it provides a framework to help us understand them. Periodizing labels are continually challenged and redefined, but once established, period "brands" are so convenient that many are hard to change.
Periodizations can provide a convenient segmentation of time wherein events within the period might consist of relatively similar characteristics However determining the precise beginning and ending of any 'period' is often arbitrary since it has changed over time and over the course of history Systems of periodization are more or less arbitrary yet it provides a framework to help us understand them Periodizing labels are continually challenged and redefined but once established period "brands" are so convenient that many are hard to change