Manetho wrote that the capital was at Thinis, the same as during the First Dynasty. However, at least the first three kings were buried at Saqqara. This could mean the center of power had moved to Memphis. Beyond this, little can be said about the events during this period. The annual records on the Palermo Stone only survive for the end of the reign of Nebra and for parts of Nynetjer's. One important event possibly happened during the reign of Khasekhemwy: many Egyptologists read his name ("the Two Powers arise") as commemorating the union of the Upper and Lower Egypts.