Who were the first people to live in shelters the built themselves?

The first people to live in shelters they built themselves were likely prehistoric humans, specifically early Homo species like Homo habilis and Homo erectus. These early humans constructed simple structures using available materials such as wood, stone, and animal hides for protection against the elements and predators. As time progressed, more complex forms of shelter emerged, reflecting advancements in tool use and social organization. Such developments marked a significant step in human adaptation and survival.