¡ES LA GUERRA! ¿De dónde proviene el árbol de cacao? Mesoamérica o Alto Amazonas La historia ha ubicado a Mesoamérica como la región del origen del árbol de cacao sin embargo estudios realizados por botánicos y genetistas lo ubican en el Alto Amazonas, cerca de los límites entre Perú, Ecuador, Colombia y Venezuela. FJ Pound un agrónomo del Departamento de Agricultura de Trinidad encontró la clave para resolver el enigma, un enfermedad común en el árbol de cacao llamada escoba de bruja (witches' broom) es facilmente sobrellevada por las plantas del Alto Amazonas gracias a su alto nivel de diversidad sin embargo las plantas de Mesoamérica muestran pobreza genética y no resisten esta enfermedad. Un árbol infectado con moniliasis del cacao (frosty pod rot) izquierda y escoba de bruja (witches' broom) derecha Ver la fuente para una información detallada. Fuente: Historia del Chocolate
MAPAS Euratlas Periodis Web shows the history of Europe through a sequence of 21 historical maps, every map depicting the political situation at the end of each century. Here, on the left, are 21 mini-maps giving access to 21 full maps and to 84 quarters of maps with more detailed views of the states, provinces and main cities.Moreover, each map offers a historical gazetteer. Thus you can highlight in red each sovereign state and in green each dependent entity. See the Map Legend for more details. Navigation through the atlas is easy: on the left side of the pages, you simply need to choose a century for temporal navigation. French and German versions of this historical atlas are also provided and you can view them by clicking on the small flags at the top of the pages. Periodis is a historical atlas of a new kind. History by Periods History is a continuous string of events among which prominent facts sometimes emerge: wars, conquests, revolutions etc.
Proyecto Clío La Era de Hobsbawm Internet History Sourcebooks Project Internet History Sourcebooks Project Paul Halsall, Editor Last Modified: Dec 11 | linked pages may have been updated more recently The Internet History Sourcebooks Project is a collection of public domain and copy-permitted historical texts presented cleanly (without advertising or excessive layout) for educational use. 1. 2. 3. Feedback and Help While I encourage notes, comments and feedback in general, I am unable to reply to all of them. For guidance on homework, research, how people lived/ate/dressed in the past, see the various Help! I am unable to help locate details about your family, or give translations of your name or nickname into Chinese (a very common request)! If you find bad links, or typographical errors, please do notify me by telling me the URL (web address) of the specific page with the fault, and (in the case of bad links) the URL of the bad link. Finding Texts and Information on this Site Use the Search page to find texts or other items located at this web site.
BLOG DE HISTORIA DEL MUNDO CONTEMPORÁNEO Internet History Sourcebooks Full Text Sources Links to full texts of books available at this and other sites will be listed here. The texts are also integrated within the overall structure of the Sourcebook. This listing is to aid compilers of web guides to online books, etc. The books that tend to have been put online here, or those that have been linked, tend to be those entire books that are often assigned to students in college classes to be read along with the more usual excerpted texts. Contents Reformation Catholic Reformation Full texts here Desiderius Erasmus: The Praise of Folly (Moriae Encomium), 1509 Sir (St.) European Exploration/Expansion Absolutism/Ancien Regime English Civil War and After Full texts here William Harrison (1534-1593): Description of Elizabethan England, 1577 (from Holinshed's Chronicles) John Woolman (1720-1772): Journal, full text, Journal of an 18th century English Quaker and his travels among Friends in America. Scientific Revolution The Enlightenment