The synthesis and reactivity of 2-benzylidenebenzocyclobutenones and derivatives
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The document discusses the history of chocolate production and consumption. It details how chocolate originated from cacao beans grown in Central and South America by the Maya and Aztec civilizations. The Spanish introduced chocolate to Europe in the 16th century, where it became a popular drink among the elite. By the 19th century, chocolate had evolved into solid candy bars and was mass produced and marketed around the world.
