In the days following the attacks, law-enforcement personnel solicited assistance from the public, asking for photographs or video footage that might prove relevant to their investigation. Three bombing victims died of their injuries, and more than 100 of the seriously injured were transferred to area hospitals as local police and federal investigators surveyed a crime scene that covered 15 square blocks. First responders reacted immediately, and a medical tent that had been erected to treat runners was turned into an emergency medical facility. It too was planted on the north side of Boylston Street amid a crowd of onlookers. Roughly 12 seconds later a second bomb exploded some 600 feet (180 metres) from the first.
About five hours into the race, the first bomb exploded less than half a block from the finish line, on the north side of Boylston Street. More than 26,000 runners participated in the race in 2013, marking the 117th time that the world’s oldest annual marathon had been contested. The festive atmosphere draws hundreds of thousands of spectators to the 26-mile 385-yard (42,195-metre) route from Hopkinton, Massachusetts, to Boston’s Back Bay neighbourhood. The marathon is traditionally held on Patriots’ Day, a public holiday in Massachusetts that commemorates the American Revolutionary War Battles of Lexington and Concord. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them!
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