World Events
- Halley's comet appears within 13 million miles of the earth.
- Japan formally annexes Korea. Russia acknowledges Japan's occupation of Korea in return for a free hand in Manchuria.
- King Edward VII of England dies and is succeeded by George V.
- Marie Curie writes Treatise on Radiography.
- Revolution in Portugal: the Republic of Portugal is recognised by the UK, France, Germany, Russia, Spain, Norway and Belgium.