| Feb. | 5, 1904. Severance of diplomatic relations. |
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|---|---|---|
8-9. Japanese naval victories at Fort Arthur and Chemulpo. |
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| 9. | Russian declaration of war. |
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| 10. | Japanese declaration of war. |
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| 23. | Treaty of Japan with Korea. |
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| 24. | First attempt to block Port Arthur. |
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| March | 13. | Marquis Ito starts on special mission to Korea. |
| 27. | Imperial Diet passed War Budget. Second attempt to block Port Arthur. |
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| 31. | Fiftieth anniversary of Perry’s treaty with Japan. |
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| April | 13. | “Petropavlovsk” sunk by Japanese mine. |
| 25. | Transport “Kinshiu Maru” sunk by Russians. |
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| May | 1. | Battle of the Yalu River. |
| 3. | Third attempt to block Port Arthur. |
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| 15. | “Hatsuse” and “Yoshino” sunk. |
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| 16. | Pan-Religion Mass Meeting, Tōkyō. |
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25, 26. Battle of Nanshan. |
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| 27. | Occupation of Dalny. |
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| June | 15. | “Hitachi Maru” (transport) sunk. Battle of Telissu. |
| 23. | Naval battle off Port Arthur. |
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| 27. | Japanese capture Ta, Motien, and Fenshui Passes. |
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| July | 6-9. Battle of Kaiping. |
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21-30. Vladivostok Squadron in Pacific Ocean. |
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| 24. | Battle of Tashikiao. |
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| 31. | Japanese capture Simucheng. |
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| Aug. | 10. | Russian fleet made unsuccessful sortie from Fort Arthur. |
| 14. | Vladivostok fleet defeated. |
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| 20. | “Novik” sunk in Korsakoff Harbor. |
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| Aug. | 23-Sept. 4. Battle of Liaoyang. |
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| Oct. | 10-15. Battle of the Shaho River. |
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| 30. | General assault on Port Arthur. |
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| Nov. | 30. | Japanese capture 203-metre Hill, P. A. |
| Dec. | 3-11. Destruction Port Arthur Squadron. |
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| 30. | Togo and Kamimura reach Tōkyō. |
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| Jan. | 1, 1905. Surrender of Port Arthur. |
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25-29. Battle of Heikeutai. |
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| Feb. | 24-March 10. Battle of Mukden. |
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| Feb. | 24. | Japanese occupied Ching-ho-cheng. |
| March | 9. | Japanese occupied Fushun. |
| 10. | Japanese occupied Mukden. |
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| 16. | Japanese occupied Tiehling. |
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| 19. | Japanese occupied Kaiyuan. |
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| 20. | Japanese occupied Fakuman. |
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| 21. | Japanese occupied Changtu. |
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| May | 27, 28. Battle of the Japan Sea. |
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| June | 2. | President Roosevelt broached subject of peace. |
| 16. | Japanese occupied Kangping. |
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| 18. | Japanese occupied Liaoyangwopeng. |
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| July | 8. | Sakhalin in hands of Japanese. |
| 18. | Vladivostok isolated. |
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| Aug. | 9. | Peace envoys convene at Portsmouth, N. H. |
| 29. | Terms of treaty of peace settled. |
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