1. epoch - Noun
2. epoch - Verb
A fixed point of time, established in history by the occurrence of some grand or remarkable event; a point of time marked by an event of great subsequent influence; as, the epoch of the creation; the birth of Christ was the epoch which gave rise to the Christian era.
A period of time, longer or shorter, remarkable for events of great subsequent influence; a memorable period; as, the epoch of maritime discovery, or of the Reformation.
A division of time characterized by the prevalence of similar conditions of the earth; commonly a minor division or part of a period.
The date at which a planet or comet has a longitude or position.
An arbitrary fixed date, for which the elements used in computing the place of a planet, or other heavenly body, at any other date, are given; as, the epoch of Mars; lunar elements for the epoch March 1st, 1860.
Source: Webster's dictionaryA man lives not only his personal life, as an individual, but also, consciously or unconsciously, the life of his epoch and his contemporaries. Thomas Mann
Architecture is the will of an epoch translated into space. Ludwig Mies van der Rohe
The obscurest epoch is today. Robert Louis Stevenson
The transformation of part of the northern part of this continent into "America" inaugurated a nearly boundless epoch of opportunity and innovation, and thus deserves to be celebrated with great vim and gusto, with or without the participation of those who wish they had never been born. Christopher Hitchens
In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with Annie. Carl Sagan
By looking far out into space we are also looking far back into time, back toward the horizon of the universe, back toward the epoch of the Big Bang. Carl Sagan