World War I: Roland Garros Shot Down Behind German Lines, April 18, 1915

Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia. Date: January 18, 1915 Read more on Wikipedia → 📅 Other events on January 18 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915First Battle of the Isonzo…

Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences. Date: November 25, 1915 Read more on Wikipedia → 📅 Other events on November 25 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915Italy Joins the Allies in World War I, May 23,…

World War I: The first tank prototype, developed by William Foster & Co. for the British army, was completed and given its first test drive. Date: September 6, 1915 Read more on Wikipedia → 📅 Other events on September 6 📅 Events on this day in 1915 📅 On This Day (Today) More events from…

World War I: Germany is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia. Date: January 31, 1915 Read more on Wikipedia → 📅 Other events on January 31 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915House Rejects…

The Vancouver Millionaires win the 1915 Stanley Cup Final, the first championship played between the Pacific Coast Hockey Association and the National Hockey Association. Date: March 26, 1915 Read more on Wikipedia → 📅 Other events on March 26 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915SS…