El agua

Páginas: 14 (3272 palabras) Publicado: 22 de octubre de 2009
Mexico City

The basin prehispanic

In pre-Hispanic times, the lakes in the basin of Mexico were determining factor in one of the most outstanding cultural developments of the ancient world. On the shores of Lake Texcoco, in Tlapacoya, is located one of the earliest evidence of man's precesencia in Mexico, with an approximate age estimate of 9000 years.

They were nomadic hunter-gathererswho for the Pre (2500-1200 BC) had become sedentary and agricultural companies that took advantage of favorable environmental conditions in the region.

For the Post Tardio (1200-1521 AD), the basin had become the heart of Mesoamerica, home to nearly one million inhabitants, from a town in the middle of a pond is dictated the fate of much of that territory. That city, Tenochtitlan, which hadbeen founded on an island in 1325 AD, had been transformed into a true metropolis and criss-crossed by canals and with a complex hydraulic structure that allows the cultivation of permanent chinampas, water transported from sweet - Chapultepec by an aqueduct built on Nezahualcoyotl and including several levees that allowed flood control and separate fresh water from salt.

Although they are nowalmost imperceptible, the traces of that structure hydraulics are written into the stroke of the city: the extension of some streets coincides with the disposition of the levees or roads, like those of Mexico-Tacuba, Vallejo, Shrimp, Nonoalco, Tlalpan, Iztapalapa, Mysteries and Melchor Ocampo. Who does not know the moves but remains the same routes that 500 years ago allowed to cross the lake, inaddition to control it. Prehipanicos all villages in the basin benefited from the flows of rivers and lakes and developed a style of life that we can call lacuestre. Thousand of that occupation are products of hundreds of archaeological sites, now mostly covered by the vast urban sprawl, but about 20 are open to the public. In this case: Mexico is a gap, it is particularly illustrative a visit tothe Museo del Templo Mayor, in which, among others, are exhibited objects and other relics which have the appearance of the great lake city and its essential relationship with water. In addition, in the Plaza Manuel Gamio, located opposite the archaeological site of Tenochtitlan clearly shows that the conformation of the city.

Pre-Hispanic era

50 million years. Period of intense volcanicactivity in which form the Basin of Mexico.

6000-750 a.C. Zohapilco of occupation, settlement and others of his era is the benefit of the biological richness of the lake area.

Post (900-1521 A.D.). The included 7 lakes basin of different properties, altimetry and size: paragraph, Techac, Tecocomulco, Zumpango, Xaltocan, Texcoco and Chalco-Xochimilco.

1300 A.D. (ca.) Construction of thecauseway Tenayuca, which, like other later lifted, also functioned as a dam. On these dates are too Nonoalco of building the road.

1325 A.D. It was founded the city of Tenochtitlan

1382 A.D. The island is prey to flooding.

1429 A.D. Ends of the road Tepeyac

1432 A.D. (ca.) After the fall of Azcapotzalco, Mexicas construct the road of Iztapalapa

1435 A.D. The river is channeledartificially Cuauhtitlan.

1449 A.D. Tenochtitlan suffers floods

1449 A.D. It builds on the Albarrandon Nezahualcoyotl, which separates Lake Texcoco of Mexico.

1466 A.D. Under the leadership of the ruling texcocano Nezahualcoyotl, built the aqueduct that would Chapultepec to the island of Tenochtitlan.

1499 A.D. Albarrodon is constructed of Ahuitzolt, in order to prevent more flooding onthe island of Mexico.

Epoca colonial

1555, 1580, 1607, 1615 and 1623. At this time, Mexico City suffers from floods.

1536 Construction of the aqueduct that left the people of Santa Fe and found the source of Marshal.

1555 First Colony during the great flood in Mexico City. It tries to restore the albarradon built in the pre-Hispanic era.


In these centuries,...
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