Inca Engineering Innovations Uncovering the Secrets of a Lost Civilization

Freeze-Drying Food. As far as recorded history goes, the Incas were the first people to develop freeze-drying techniques. · Brain Surgery · A ... That would make it perhaps the biggest empire in all of the indigenous Americas before the Spanish arrival. Q: So how quickly did it grow? What were the dates ... It is one of the most well-known archaeological sites in the world and attracts hundreds of thousands of visitors every year. It was once part ... Five facts about the Incas are: they built the mountain city of Machu Picchu, they worshipped the Sun, they created the largest empire in the ... Some of their most impressive inventions were roads and bridges, including suspension bridges, which use thick cables to hold up the walkway. The Incas were able to sustain their large empire and feed their population through innovative and sustainable agricultural practices. One of ... Textiles were also manufactured that could only be used for certain tasks or social arenas. A rougher textile, spun from llama wool and called awaska, was used ... These khipus were used for accounting, statistics, and historical records, and individuals were trained in how to read and create them. Religious Education: A ... The Inca state was also supported by a complex bureaucracy, which included a system of record-keeping known as the quipu, as well as a system of ... Brain surgery was a crucial invention contributing to the advancement of this society because soldiers who fought in wars became prone to injuring their brains ...