Browse by Era
Explore philosophical traditions across the ages.
Ancient
3000 BCE – 500 CE
Classical antiquity — Greece, Rome, and the great empires of the Mediterranean and East.
Medieval
500 – 1500 CE
The age of knights, samurai, and Renaissance city-states.
Revolutionary
1750 – 1815 CE
Revolution and empire — America, France, and the birth of modern warfare.
Civil War
1860 – 1870 CE
The American Civil War — total war, industrial might, and the end of an era.
World Wars
1914 – 1945 CE
Two wars that remade the world. Trench, armor, air, sea, and total mobilization.
Modern
1945 – 2100 CE
Cold War through present — counterinsurgency, special operations, and doctrine.