170s

Marcus Aurelius writes down most of his Meditations this decade; The Antonine Plague kills between 5 to 10 million people in the Roman Empire

The 170s decade ran from January 1, 170, to December 31, 179.

Events

170

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171

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172

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173

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174

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175

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176

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177

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178

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179

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Significant people

• Marcus Aurelius, Roman Emperor
• Caerellius Priscus, governor of Roman Britain