The American Meridian

From 1848 to 1884, the United States of America marked the center of its world at the American Meridian, a line that originated at the old U.S. Naval Observatory, passed through this point, and divided the world into eastern and western hemispheres before the United States accepted the Meridian at Greenwich, England, as the Prime Meridian. The American Meridian was used to survey the western states, and the straight borders of those states were measured in integral degrees from this point, including Wyoming's eastern border at 29 degrees American West and western border at 36 degrees American West, Colorado's eastern border at 27 degrees American West and western border at 34 degrees American West, and Oregon's eastern border at 42 degrees American West, as well as borders of Arizona, California, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, North and South Dakota, Utah, and Washington.

Washington, District of Columbia · United States