I once was in Cairo during a feast, but it was in the spring time. Before the feast there were large heards of sheep walking around the city, which was strange. After the feast the sidewalks were covered in blood. Would that have been Eid al-Adha? Maybe its on a wierd calendar that changes the time of year slightly every year?
Also, I think you mean Abraham instead of Moses, right? Is this a typo or a different version of biblical geneology?