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RMS Leinster is torpedoed and sunk by UB-123, killing 564, the largest loss of life on the Irish Sea.
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RMS Leinster
Torpedoed mailboat (1918)
RMS Leinster was an Irish ship operated by the City of Dublin Steam Packet Company. She served as the Kingstown-Holyhead mailboat until she was torpedoed and sunk by the German submarine UB-123 on 10 October 1918, while bound for Holyhead. She sank just outside Dublin Bay at a…Source: Wikipedia (CC BY-SA)
SM UB-123
German U-boat
SM UB-123 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 6 April 1918 as SM UB-123.Source: Wikipedia (CC BY-SA)
Irish Sea
Sea between Ireland and Great Britain
The Irish Sea is a 46,007 km2 (17,763 sq mi) body of water that separates the islands of Ireland and Great Britain. It is linked to the Celtic Sea in the south by St George's Channel and to the Inner Seas off the West Coast of Scotland in the north by the North Channel.…Source: Wikipedia (CC BY-SA)
October 10
Day of the year
October 10 is the 283rd day of the year in the Gregorian calendar; 82 days remain until the end of the year.Source: Wikipedia (CC BY-SA)