- The First Battle of Krithia begins as Allied forces attempt to break through Turkish defenses to take the village of Krithia, 24km south of Anzac Cove. Commander-in-Chief Sir Ian Hamilton plans to consolidate the Allied attack and link up with the remaining force at Anzac Cove. The advance is repelled with heavy loss of life; 3,000 of the 14,000 strong force are killed.
- The International Congress of Women opens at The Hague. More than 1,200 delegates from 12 countries convene with two objectives: to discuss a peaceful outcome to WWI and to draft a new international legal system to prevent future wars.