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Derinkuyu Underground City

Multi-level city carved in Cappadocian tuff; sheltered thousands.

Dated events and their evidence

• 700 BCE mainstream
  likely earliest excavation (Phrygian) source
• 800 CE mainstream
  Byzantine-era deep expansion source

Where

38.3735° N, 34.7351° E

Sources

• https://en.wikipedia.org/wiki/Derinkuyu_underground_city
• https://www.history.com/articles/derinkuyu-turkey-underground-city

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