Ages
Wilson's Dictionary of Bible Types [1]
Isaiah 26:4 (Margin) (a) Here we find that Christ is the One in whom men may safely trust in any age from infancy to death, or in any period of time. It also informs us that CHRIST may be trusted fully for every matter concerning this life or the next. CHRIST is able to sustain and support every person whether it be the little child, or the mature man of business. CHRIST may be trusted in every situation, in every circumstance, and in any time of day or night.
Ephesians 2:7 (b) Reference is made here to the various periods of time which succeed each other in the course of history clear up into eternity. This passage refutes the doctrine of "soul sleeping," and the "annihilation" theory.
The Nuttall Encyclopedia [2]
In the Greek mythology four—the Golden, self-sufficient; the Silver, self-indulgent; the Brazen, warlike; and the Iron, violent; together with the Heroic, nobly aspirant, between the third and fourth. In archeology, three—the Stone Age, the Bronze, and the Iron. In history, the Middle and Dark, between the Ancient and the Modern. In Fichte, five—of Instinct, of Law, of Rebellion, of Rationality, of Conformity to Reason. In Shakespeare, seven—Infancy, Childhood, Boyhood, Adolescence, Manhood, Age, Old Age.