The two Eids – Eid al-Fitr and Eid al-Adha – are the two main holidays in Islam.  Rosh Hashanah and Yom Kippur are the primary focal points of the High Holiday period in Judaism.  Yet unlike some festive occasions (e.g., mid-Ramadan iftars or Passover seders), Jews and other non-Muslims typically know very little about the Eids and aren’t likely to have experienced them, and Muslims and other non-Jews likewise tend to know very little about Rosh Hashanah and Yom Kippur. …