In the ancient Mediterranean world, its role for navigation and geography was similar to that played by the Equator today.
[1] From 7 April 1991 to 31 December 1996, the parallel defined the limit of the northern no-fly zone in Iraq.
[3] Starting at the Prime Meridian and heading eastwards, the parallel 36° north passes through: In the United States, the 36th parallel north is occasionally used as a rough northern boundary for the Sun Belt, a region spanning most Southern and Southwestern states and comprising most of the nation's warmest climates.
Cities and landmarks close to the parallel include the following: Kettleman City, California; Henderson, Nevada; Hoover Dam; South Rim of the Grand Canyon; Los Alamos National Laboratory; Tulsa, Oklahoma (passing through the southern portion of the city); Nashville, Tennessee (passing through the southern portion of the city); Knoxville, Tennessee; Winston-Salem, North Carolina; High Point, North Carolina; Greensboro, North Carolina; Durham, North Carolina; Chapel Hill, North Carolina; and others.
[5] The parallel 36° north approximately forms the southernmost boundary of the Missouri Bootheel with the State of Arkansas.