We took a day-trip to Tiwanaku, from . Inca culture is what most people seem to think about when talking about Peruvian and Bolivian history. However, perhaps more important, for Bolivia anyway, is the Tiwanaku period. The Tiwanaku civilisation started around 1500 BC (the earlier parts that is, some people count the start of the Tiwanaku period as being 600 BC, the temples were built around 300 AD) and ended roughly when the Incas came to power, around 1200 AD - a 2,700-year empire. Think about that! The Roman empire lasted for roughly 1,200 years, for example. The Tiwanaku people seemed highly developed in terms of architecture and astronomy, working with a 24-hour division of each day, 365 day year, etc. As one example, they created an observatory pool, in the shape of a giant sun
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