Note 192 — APPENDIX The Influence of Mesopotamia on Egypt Towards the End of the Fourth Millennium B.C.[169]

Some features of Mesopotamian civilization remain almost unaltered during the Protoliterate period, hence it is very important that the Egyptian links can be proved to derive from the latter part, which is known to be a time of expansion in any case. The evidence for the synchronization of the rise of Dynasty I in Egypt with the later part of the Protoliterate period in Mesopotamia consists of three groups: