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The Great Tri-State Tornado of Wednesday, March 18, 1925, crossed from southeastern Missouri, through southern Illinois, then into southwestern Indiana, and was the deadliest tornado in U.S. history. With 695 confirmed fatalities, the tornado killed more than twice as many as the second deadliest, the 1840 Great Natchez Tornado. The continuous ≥219 mile (≥352 km) track left by the tornado was the longest ever recorded in the world. Historians would recognize it as an example of the maximum issued rating of an F5 on the Fujita scale.