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B.C. 431

Specialty Definition: 431 BC

(From Wikipedia, the free Encyclopedia)

Centuries: 6th century BC - 5th century BC - 4th century BC

Decades: 480s BC 470s BC 460s BC 450s BC 440s BC - 430s BC - 420s BC 410s BC 400s BC 390s BC 380s BC

Years: 436 BC 435 BC 434 BC 433 BC 432 BC - 431 BC - 430 BC 429 BC 428 BC 427 BC 426 BC

Births

Deaths

Events

• The Greek physician and philosopher Empedocles articulates the notion that the human body has four humors- blood, bile, black bile, and phlegm, a belief which dominates medical thinking for centuries.

  Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "431 BC."

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