An international team of archeologists have discovered a massive tomb that belonged to one of ancient Egypt ’s earliest pharaohs. However, the ruler’s identity remains a mystery—as do many details of his long-lost dynasty.

Archaeologists have discovered the large limestone burial chamber of an unidentified ancient Egyptian pharaoh near the city of Abydos dating to about 3,600 years ago during a chaotic period in Egypt's history.

Researchers from a museum in Pennsylvania were part of a recent major discovery. The researchers, along with Egyptian archaeologists, unearthed an ancient tomb of an as-of-yet unidentified pharaoh. A press release from the Penn Museum in Philadelphia details how — together with the Egyptian Ministry of Tourism and Antiquities — these archaeologists found a roughly 3,