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220s

Centuries: 2nd century - 3rd century - 4th century

Decades: 170s - 180s - 190s - 200s - 210s - 220s - 230s - 240s - 250s - 260s - 270s

Years: 220 221 222 223 224 225 226 227 228 229

Events:

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1904

... of a document, using Thomas Edison's cylinder. March 4 - Russo-Japanese War: Russian troops in Korea retreat toward Manchuria followed by 100,000 Japanese troops. ...