What is one holy day or festival for Islam?

Answer 1

Eid-al-Fitr is a three day festival celebrating the end of Ramadan, the month on the Islamic calendar that all Muslims fast in obedience to God. Ramadan is also the month in which the Quran was revealed by Allah to the Prophet Mohammad (peace be upon him).

A second holy day or festival in Islam is Eid-al-Adha, or Festival of Sacrifice. The month of Hajj on the Islamic calendar commemorates the trials and accomplishments of the Prophet Abraham (peace be upon him). Eid-al-Adha begins at the end of Hajj and lasts for 3 days. It is called the Festival of Sacrifice as it is often commemorates the request by Allah of Abraham (peace be upon him) to sacrifice his son Ismail; Muslims often sacrifice an animal that they divide between family, friends and the poor.