- The Easter Rising begins as more than 1,000 armed republicans attempt to take control of Dublin. Their intention is to destroy British rule and create an Irish Republic. The rebellion continues until 29 April and results in almost 500 deaths.
- British naval aeroplanes continue their raid on German targets along the Belgian coastline
- One person is killed and another injured as zeppelins raid the British coast near Norfolk and Suffolk
- The paddle steamer SS Julnar attempts to pass undetected past Turkish positions on the Tigris River to deliver 270 tons of supplies to the besieged garrison at Kut-al-Amara in Mesopotamia. The vessel is only 6km from the fort when its rudder is snared by steel cables stretched across the river. Most of the crew are wounded or killed by Turkish fire; the survivors are taken prisoner. As one officer of the relief force later observed: “from that moment, Kut was doomed.” The Last Voyage of the SS Julnar