Egyptian chronology
Agreement on the general chronology used in Egyptology has not changed much over the last 100 years. For the Old Kingdom, there have been changes by as much as a few centuries. The Middle and the New Kingdoms dates have changed by only a few decades. The changes can be seen by comparing the chronology of two Egyptologists, the first from 1906 and the second in 2000 (all dates in the table are BC).