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Ioannis was a Greek sailing vessel of 280 tons. On October 9th, 1917, Ioannis was sunk by a German submarine , 100 miles southwest of Crete, Greece.
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References
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Sailing vessel Ioannis – Ships hit by U-boats – German and Austrian U-boats of World War One – Kaiserliche Marine – uboat.net [WWW Document], n.d. URL https://uboat.net/wwi/ships_hit/3045.html (accessed 15.10.21).
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WRECKSITE – IOANNIS 1917 [WWW Document], n.d. URL https://www.wrecksite.eu/wreck.aspx?153560 (accessed 15.10.21).
