1. 
   Iztacalco
   municipio (`municipality`), northeastern Federal District, central Mexico. It is situated at an elevation of 7,418 feet (2,261 m) in the Valley of ...
   Found op http://www.britannica.com/eb/a-z/i/49
   
   
2. 
   Iztacalco
   Iztacalco is one of the 16 delegaciones (boroughs) into which Mexico`s Federal District is divided. It is located in the center-east of the district and is the smallest of the city’s boroughs. The area’s history began in 1309 when the island of Iztacalco, in what was Lake Texcoco, was settled i...
   Found op http://en.wikipedia.org/wiki/Iztacalco
   
   
3. 
   Iztacalco
   Iztacalco or Ixtacalco (both: ēstäkäl'kō) , city (1990 pop. 448,322), Federal District, S central Mexico. It is an industrial center adjacent to Mexico City. Several historic landmarks have been preserved.
   Found op http://www.infoplease.com/ce6/world/A0825753.html
   
   

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