The first assassination attempt on a U.S. president:

"On 30 January 1835 in Congress, a mad assassin fired two pistols at President Jackson, then aged sixty-seven, and both misfired. Old Ferocious had lost none of his ferocity: he felled the assassin with his cane and would have beaten him to death had he not been pulled off by a fellow frontiersman, Davy Crockett."

–from "The World: A Family History of Humanity", by Simon Sebag Montefiore