Timeline Military
Early Civilization – Varies By Region
Pre-Columbian Before 1492 A.D.
Metal Ages 4,000 – 800 B.C.
Classical Period 4,000 B.C. – 475 A.D.
Medieval 475 – 1500 A.D.
Renaissance 1300 – 1600 A.D.
Early Modern 1450 – 1750 A.D.
Colonial Period – Varies By Region
Industrial Revolution 1699 – 1850 A.D.
19th Century 1800s A.D.
20th Century 1900s A.D.
21st Century 2000s A.D.
