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Henry Schenk Tanner:  A Map of the United States of Mexico, As organized and defined by the several Acts of the Congress of that Republic . . . 1825

Maps of Texas

Title: A Map of the United States of Mexico, As organized and defined by the several Acts of the Congress of that Republic . . . 1825

Map Maker: Henry Schenk Tanner

Place / Date: Philadelphia / 1825

Coloring: Hand Colored

Size: 31 x 25 inches

Condition: VG

Price: SOLD

Inventory ID: 29015


Exceedingly rare first edition of Tanner’s map, one of the most important maps in 19th Century American History.

In this rare first edition, first state of Tanner's map (dated 1825), the map properly illustrates the boundary between the United States and Mexico. In the second state (dated 1826), the boundary is erroneously moved to the north in what is then shown as New Mexico.  It is this erroneous boundary line between the two countries that is copied first by White Gallaher & White in 1828 (Mapa de los Estados Unidos de Méjico . . .).  Thereafter, in 1846, after John Disturnell acquires the White Gallaher & White plate and re-issues the map in 1846 and 1847 without changes to this boundary line, the erroneous Tanner / White Gallaher & White / Disturnell boundary becomes the official boundary between the United States and Mexico, until the error is discovered by the Boundary Survey Commissioners, which in turn necessitates, among other factors, the 1853 Gadsden Purchase.

Wheat noted that in the first edition of the map "the southern bounday of New Mexico seems to follow Humboldt, but in 1826 Tanner alterd that boundary west of El Paso, bring it further north."  It was this 1826 issue of the map which became the source for the White Gallaher and White map of 1828, which in turn became the source for Disturnell's celebrated "Mapa de los Estados Unidos de Mejico, first published in 1846," creating the erroneous boundary in the Treaty of Guadalupe Hidalgo.

Tanner based the present map on the work of Alexander von Humboldt, Don Juan Pedro Walker, Zebulon M. Pike, William Darby, Bernardo de Orta, J.F. de Lángara y Huarte, and other sources. Tanner’s map was often copied, both in the U.S. and abroad.

Tanner’s maps of Mexico were a primary sources on Mexico and the emerging western territories of the United States for three decades. For instance, Tanner’s 1834 map was one of the few sources to include Stephen F. Austin’s maps and (Tanner also published Austin’s maps).  As Wheat notes, the map was probably rushed into production to take advantage of the great interest in news of the Mexican-American War. 

In all, a nice example of one of the most important maps in American history.

Condition Description: Dissected and laid on linen.

Related Categories:
Maps of Baja California
Maps of California (California, Nevada, Arizona)
Maps of Mexico
Maps of the American Plains (Indian Territory, Oklahoma, Kansas, Nebraska, Iowa, Missouri, North Dakota, South Dakota)
Maps of the Rocky Mountains (Colorado, Wyoming, Montana, Utah, New Mexico)
Maps of Southwest America (Nevada, Arizona, Colorado, Utah, New Mexico, Texas)
Maps of Texas

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