When researcher Charlotte Pearson examined a palm-sized piece of ancient tree, she noted that one of the rings seemed unusually small. Three years later, and armed with new methodology and technology, she discovered that this ring could mark the year that the volcano of Tera (the Greek island of San
Unquestionably the largest wall in the world is the famous Great Wall of China. In Europe there is another very similar, although considerably smaller, the Wall of Ragusa. And among those that no longer exist are the Walls of Benin, in Africa, which were once the longest structure built by Man. Ind
Thefeudal society is the one that developed during the period of feudalism, a system that prevailed in Europe between the 10th and 15th centuries. Feudal society was essentially rural based on the fief (land) and inserted in a monarchical system of decentralization of power. It was marked by agrar
Mesopotamia is derived from Greek words meaning land between the rivers. The rivers Tigris and Euphrates are the names of the rivers. The first inhabitants of this area, the early Sumerians, did not speak Greek; many years later, the Greek-speaking Alexander the Great conquered this territory and to