What were the shark attacks of 1916?

"On July 1, 1916, witnesses watched in horror as twenty-three-year-old Charles Vansant was attacked and killed by a shark in shallow water at Beach Haven, New Jersey--the first recorded shark attack in American history. Scientists claimed a shark could not be responsible, but more deadly attacks soon followed along the Jersey Shore and up the freshwater Matawan Creek, setting off a nationwide panic that led the White House to declare a war on sharks"--Provided by publisher.