distance between knots conveyed meaning to the Inca, sort of like writing. Only specially trained officials knew how to use quipus. A drawing of a quipu Stone Buildings The Inca were able to create sturdy stone buildings. Without the use of iron tools they were able to shape large stones and have them fit together without the use of mortar. By fitting the stones closely as well as other architectural techniques, the Inca were able to create large stone buildings that survived for hundreds of years despite the many earthquakes that occur in Peru. Farming The Inca were expert farmers. They used irrigation and water storage techniques to grow crops in all sorts of terrain from the deserts to the high mountains. Despite not having beasts of burden or iron tools, the Inca farmers were very efficient. Calendar and Astronomy The Inca used calendar to mark religious festivals as well as the seasons so they could plant their crops at the correct time of the year. They studied the sun and the stars to calculate their calendar. The Inca calendar was made up of 12 months. Each month had three weeks of ten days each. When the calendar and the sun got off track, the Inca would add a day or two to bring them back into alignment. Government and Taxes
distance between knots conveyed meaning to the Inca, sort of like writing. Only specially trained officials knew how to use quipus. A drawing of a quipu Stone Buildings The Inca were able to create sturdy stone buildings. Without the use of iron tools they were able to shape large stones and have them fit together without the use of mortar. By fitting the stones closely as well as other architectural techniques, the Inca were able to create large stone buildings that survived for hundreds of years despite the many earthquakes that occur in Peru. Farming The Inca were expert farmers. They used irrigation and water storage techniques to grow crops in all sorts of terrain from the deserts to the high mountains. Despite not having beasts of burden or iron tools, the Inca farmers were very efficient. Calendar and Astronomy The Inca used calendar to mark religious festivals as well as the seasons so they could plant their crops at the correct time of the year. They studied the sun and the stars to calculate their calendar. The Inca calendar was made up of 12 months. Each month had three weeks of ten days each. When the calendar and the sun got off track, the Inca would add a day or two to bring them back into alignment. Government and Taxes
100_significant_world_events_over_the_past_1000_years.docx