The Wadi al-Jarf papyri were discovered at an ancient Red Sea harbor site in Egypt. They are the oldest known papyrus documents that have survived to the present day. The papyri date to the reign of Pharaoh Khufu, also known as Cheops, around the 26th century BCE. The most famous text is the diary of a workforce supervisor named Merer. The records describe the transport of limestone blocks along the Nile to construction sites. The papyri provide a rare insight into the administration and logistics of ancient Egypt. They are considered an important source for studying events during the construction period of the Great Pyramid of Giza. Although archaeologists regard the papyri as significant evidence related to pyramid construction, some researchers and enthusiasts believe they may also support interpretations beyond those commonly accepted by mainstream archaeology.