10 May

1915 (Monday)

 * French take cemetery of Neuville St. Vaast and part of Carency (north of Arras).
 * British repulsed on Aubers Ridge.
 * German retreat in Baltic Provinces.
 * Sinking of RMS Lusitania causes anti-German demonstrations in London and Liverpool.
 * Submarine HMS E14 sinks a transport in the Sea or Marmora.
 * President Wilson on the Lusitania: "There is such a thing as a man being too proud to fight," etc.
 * Naval Convention signed between Great Britain, France and Italy.