இருபத்தாந்தாம் வம்ச சைத் மன்னர் எகிப்தை 610 முதல் 525 முடிய தொடர்ந்து ஆண்டனர். கெடுவாய்ப்பாக பாரசீகத்தின் [[அகாமனிசியப் பேரரசு|அகாமனிசியப் பேரரசினர்]] [[பாபிலோன்|பாபிலோனைக்]] கைப்பற்றிய கையோடு கிமு 525-இல் எகிப்தின் [[மெம்பிசு]] நகரத்தையும் கைப்பற்றினர்.
== வரலாற்றுவரைவியல் ==
The historiography of this period is disputed for a variety of reasons. Firstly, there is a dispute about the utility of a very artificial term that covers an extremely long and complicated period of Egyptian history. The Third Intermediate Period includes long periods of stability as well as chronic instability and civil conflict: its very name rather clouds this fact. Secondly, there are significant problems of chronology stemming from several areas: first, there are the difficulties in dating that are common to all of [[Egyptian chronology]] but these are compounded due to synchronisms with Biblical archaeology that also contain heavily disputed dates. [[Peter James (historian)|James et al.]] argued contra Kitchen that the period lasted less than 200 years - starting later than 850 BC but ending at the conventional date - as the five dynasties had many years of overlap.<ref>{{Cite journal|last=|first=|date=1991|title=Centuries of Darkness: Context, Methodology and Implications [Review Feature]|url=https://www.centuries.co.uk/CoDreviewfeature1991.pdf|journal=Cambridge Archaeological Journal|language=en|volume=1|issue=2|pages=228ff|doi=10.1017/S0959774300000378|issn=1474-0540|archive-url=|via=}}</ref> Finally, some [[Egyptologist]]s and biblical scholars, such as [[Kenneth Kitchen]] and [[David Rohl]] have novel or controversial theories about the family relationships of the dynasties comprising the period.
