10. The Boston Marathon Bombing – 2013
The Boston Marathon bombing on April 15, 2013, brought tragedy to one of the world’s oldest and most celebrated races. Twin explosions near the finish line killed three people and injured hundreds, shocking the global community. The attack exposed the vulnerability of public sporting events but also inspired an overwhelming outpouring of support, resilience, and unity from people around the world (via The New York Times – Boston Marathon Bombing).
