Add spaces: WhentheEgyptianNewKingdompowerwanedCushwasabletoemergeonceagainasanindependentstateabout800BCE.

Answer: When the Egyptian New Kingdom power waned Cush was able to emerge once again as an independent state about 800 BCE.

Add spaces: Assembly:Sewsleeveseamsandsideseams.

Answer: Assembly: Sew sleeve seams and side seams.

Add spaces: Japanesewife,Japanesemassage

Answer:
Japanese wife, Japanese massage