Coincidentally, all but one of the presidents who later died in office had, like Harrison, won a presidential election in a year ending in a zero (1840 through 1960). This pattern of tragedies came to be known as the Curse of Tippecanoe, or the Curse of Tecumseh, the name of the Shawnee leader against whom Harrison fought in the 1811 Battle of Tippecanoe. Also sometimes referred to as the "Zero Factor" legend, the pattern was disrupted by Ronald Reagan, who survived an assassination attempt in 1981 (69 days after taking office) and lived to complete two full terms.