Europe – The Scale of Enslavement (3rd Millennium BCE – 1991 CE)
 Epoch / System   Time frame   Population of Europe (million)   Number enslaved or dependent (million)    Share of population    Main forms of dependence    Principal sources 
 Early tribal communities   > 3000 BCE – 1500 BCE   5 – 10   0.2 – 0.3   2 – 5 %   war captives, domestic bondage   UNESCO World Civilizations 
 Greece and Rome   8th c. BCE – 5th c. CE   45 – 60   10 – 15   20 – 30 %   systemic slavery – warfare, trade   Finley, Scheidel 
 Early Middle Ages   5th – 11th c.   25 – 35   0.5 – 1   2 – 4 %   Slavic trade (Sclavus → Slave)   Phillips, Cambridge Economic History 
 Feudalism and Serfdom   11th – 17th c.   60 – 90   20 – 30   25 – 35 %   corvée labor, personal subjugation   Le Goff, Davies 
 Ottoman and Tatar bondage   14th – 18th c.   90 – 100   2 – 3   2 – 3 %   jasyr – slave raids and trade of Central Europeans   Fisher, Vernadsky 
 Serfdom and Absolutism   15th – 19th c.   100 – 190   25 – 30   15 – 25 %   hereditary agricultural labor   Cambridge Economic History 
 Empires of Compulsion (Mongol–Russian, USSR)   13th – 20th c.   150 – 250   35 – 40   15 – 20 %   serfdom, penal labor, deportations, Gulag, Holodomor   Conquest, Applebaum, Hellie 
 Iron Curtain – Soviet Bloc   1945 – 1991   300 – 400   160 – 180 (population of Eastern Bloc)   ≈ 50 % of Europe   state control, censorship, restricted movement   Davies, Hosking, UNESCO Population Studies 
 United Europe (after 1991)   > 1991   450 – 500   < 1   < 1 %   economic forms, human trafficking   UN Human Development Reports 
 Interpretation

- For most of recorded history, between one‑fifth and one‑third of Europe’s inhabitants lived in some form of dependence — from war captives to serfs bound to the land.
- After 1945, “free citizens” of half the continent again lost the right to choose where to live or speak freely; the bloc system turned borders into an “Iron Wall,” replacing chains with bureaucratic restraints.
- From the 13th to the 20th century, much of Eastern Europe remained within successive incarnations of the same model — subjects bound to a pathologically centralized state, known first as “slaves of the Tsar,” later as “citizens of the people.”

The numbers show the scale.
Two human stories — Hiroo Onoda and Józef Franczak “Lalek” — illustrate how in the same century the words obedience and freedom could mean utterly different things.

 American Occupation

“Whatever happens, we will come back for you…”

Hiroo Onoda — one of the last samurais, a soldier of His Imperial Majesty, served faithfully.
In 1944 he was ordered by his superior:

“Remain on Lubang Island, conduct guerrilla warfare, destroy enemy supplies, and under no circumstances commit suicide or surrender. This may take three years, perhaps even five, but whatever happens — we will come back for you.”