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Encyclopedia > 420s BC
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420s BC
Centuries: 6th century BC - 5th century BC - 4th century BC
Events and Trends
Decades: 470s BC 460s BC 450s BC 440s BC 430s BC - 420s BC - 410s BC 400s BC 390s BC 380s BC 370s BC
429 BC 428 BC 427 BC 426 BC 425 BC 424 BC 423 BC 422 BC 421 BC 420 BC
Events and Trends
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