1 You must wait at least 12 months following the completion of treatment to donate your blood. 2  You cannot have had a recurrence of cancer.  If you are currently in treatment, then you are ineligible to donate.
The Royal Road helped the Persian Empire by uniting the empire, delivering mail,and promoted trade and businessthroughout the empire. When the Royal Road unitedthe empire everything started to happen, the delivered mail and the promotion oftrade and business. The Royal Road was for government purposes.
It gave them water for water supply but it hurt Egypt because i â¦ t flooded the crops Cataracts (the white water rapids of the Nile) prevented potentialinvasions using the River Nile--but they also kept Egyptians fromgetting very far. The cataracts harmed the Egyptians because itheld back ships that tried to move though the River Nile. It helped Egypt because it protected from invaders from coming in. It hurt Epgyt in the sailing portion. The cataract made it impossible for invaders attack the Egyptians