A notable event which marks the beginning of such a period.
A geochronologic unit of hundreds of thousands to millions of years; a subdivision of a period, and subdivided into ages (or sometimes subepochs).
A specific instant in time, chosen as the point of reference or zero value of a system that involves identifying instants of time.
A particular period of history, or of a person's life, especially one considered noteworthy or remarkable.
One complete presentation of the training data set to an iterative machine learning algorithm.
To divide (data) into segments by time period.
The period during which a monarch rules.
The exercise of sovereign power.
The territory or sphere over which a kingdom; empire; realm; dominion, etc. is ruled.
To exercise sovereign power, to rule as a monarch.
To reign over (a country)
To be a dominant quality of a place or situation; to prevail, predominate, rule.
To be the winner of the most recent iteration of a competition.