Known today by a name they would not have recognized-Anasazi, Navajo for "ancient enemies"-the ancestors of the modern Zuni and Hopi built and then, for reasons still mysterious, abandoned the complex roads and structures of the domain they ruled a millennium ago in the American southwest.

• Aancestors of the modern Zuni and Hopi built and then, for reasons still mysterious, abandoned the complex roads and structures of the domain they ruled a millennium ago in the American southwest  
• Breasons are still mysterious why the ancestors of the modern Zuni and Hopi built and then abandoned the complex roads and structures of the domain they ruled in the American southwest a millennium ago  
• Cmodern Zuni and Hopi had ancestors who, a millennium ago, ruled a domain in the American southwest where they built and then abandoned complex roads and structures for still mysterious reasons  
• Ddomain of the American southwest was ruled a millennium ago by the ancestors of the modern Zuni and Hopi, who built and then, for reasons still mysterious, abandoned complex roads and structures  
• Ecomplex roads and structures of the domain that the ancestors of the modern Zuni and Hopi ruled a millennium ago in the American southwest were built and then, for reasons still mysterious, abandoned