Age

Age can refer to several concepts:

• chronological or biological age.

• Geological age, each of the smaller geochronological units in which the geological temporal scale is divided.
• Periodizationby which conventionally Western historiography is divided into prehistory and history.
  • Prehistoric ages: those that existed since the first Homo (about 2.5 million years ago) to the invention of writing (about 5000 years ago)
    • Stone Ageduring which also beings human rights They created stone utensils.
    • Age of Bronze, in which the metallurgy of this alloy was developed: bronze.
    • Age of Iron, during which the use of such metal is discovered and popularized.
  • Historical ages:
    • Old age: ranges from the appearance of writing to the fall of the Roman Empire, in 476 AD.
    • Agefrom the disintegration of the Roman Empire of the West until in the same century the following three key facts occur: a) fall of the Eastern Roman Empire, by the Turks, in 1453; b) invention of the printing of mobile types, in 1455; c) discovery of the New World, in 1492.
    • Modern Age: from the above three facts to the Declaration of Independence of the United States, in 1776, or the French Revolution, in 1789.
    • Contemporary Agefrom the two events mentioned above to the present.