Battle of Chemulpo Bay
1904 CE.
Shown on the map at 37.347°, 126.523°.
The Battle of Chemulpo Bay was a naval battle in the Russo-Japanese War (1904–1905), which took place on 9 February 1904, off the coast of present-day Incheon (then called Chemulpo), Korea.
Text from the Wikipedia article Battle of Chemulpo Bay, licensed CC BY-SA 4.0.