Long, long ago, in the southwestern region of the United States, lived a unique civilization, the Ancestral Puebloans. They were known for their extraordinary architecture, creating complex houses and ceremonial buildings called 'Great Houses,' some of which are still standing today. The Ancestral Puebloans were also skilled farmers. Despite living in a desert environment, they cultivated crops like corn, beans, and squash. They used advanced irrigation techniques to efficiently use the scarce water resources available to them. In addition to farming, the Puebloans were also artisans. They had remarkable skills in pottery and weaving. You can still see examples of their intricate pottery designs and woven textiles in museums today. The story of the Ancestral Puebloans ends with an intriguing mystery. Around 1300 AD, they suddenly disappeared from their ancestral lands. Scholars aren't sure why this happened. Some theories suggest it could have been due to a severe drought, conflicts, or changes in their society.