In 1894, the British W. Flinders Petrie discovered thousands of graves at Nagada. Nagada is located about thirty kilometers north of Luxor. What he finds looks nothing like other Egyptian sites, too, finds it does gathered in a concept of "culture of Nagada." The researchers soon realized it was prior to the burial of the first dynasty of pharaohs.
Petrie divided this time into three periods now referring, Nagada I : 3800-3600 B.C., Nagada II : 3600 to 3300 and Nagada III : 3300 to 2700. The last period includes the first two pharaoh dynasties.
Specifically, he made his findings on two main cemeteries across Koptos but on the west side of the Nile:
That of Toukh;
Ballas (Al Balas).
At Toukh Petrie identified a temple dedicated to Seth. The ruins date from the time of Thutmose I / Thutmose III. The temple is known as Seth of Nebty. That's why Toukh / Nagada is considered to be the ancient city of Nebt or Nubt (meaning city of gold), known by the Greeks under the name of Ombos (it should not be confused with Kom Ombo much south).
Here are some items that justify these names: