The 20th Dynasty of ancient Egypt lasted from approximately 1186 to 1069 BCE. It is known for its strong pharaohs, including Ramesses III, who is often considered the last great ruler of the New Kingdom. This period saw significant architectural achievements, including the construction of temples and tombs in the Valley of the Kings. During the 20th Dynasty, Egypt faced various challenges, including invasions by the Sea Peoples and internal strife. Despite these difficulties, the dynasty maintained a degree of stability and cultural continuity, contributing to the rich legacy of ancient Egyptian civilization.