The name "Ramadan" had been the name of the ninth month in Arabian Culture long before the arrival of Islam; the word itself derived from an Arabic Root rmḍ, as in words like "ramiḍa" or "ar-ramaḍ" denoting intense heat, scorched ground and shortness of rations. In the Qur'an, God proclaims that "fasting has been written down (as obligatory) upon you, as it was upon those before you".
Muslims should start observing the fasting ritual upon reaching the age of puberty, so long as they are healthy, sane and have no disabilities or illnesses. The elderly, the chronically ill, and the mentally ill are exempt from fasting, although the first two groups must endeavor to feed the poor in place of their missed fasting. Also exempt are pregnant women if they believe it would be harmful to them or the unborn baby, women during the period of their menstruation, and women nursing their newborns. A difference of opinion exists among Islamic scholars as to whether this last group must make up the days they miss at a later date, or feed poor people as a recompense for days missed.While fasting is not considered compulsory in childhood, many children endeavour to complete as many fasts as possible as practice for later life. Lastly, those traveling (musaafir) are exempt, but must make up the days they miss. More specifically, Twelver Shī‘ah define those who travel more than 14 mi (23 km) in a day as exempt.
In addition to fasting, Muslims are encouraged to read the entire Qur'an. Some Muslims perform the recitation of the entire Qur'an by means of special prayers, called Tarawih, which are held in the mosques every night of the month, during which a whole section of the Qur'an (Juz', which is 1/30 of the Qur'an) is recited. Therefore the entire Qur'an would be completed at the end of the month.
Ramadan is also a time when Muslims are to slow down from worldly affairs and focus on self-reformation, spiritual cleansing and enlightenment; this is to establish a link between themselves and God through prayer, supplication, charity, good deeds, kindness and helping others. Since it is a festival of giving and sharing, Muslims prepare special foods and buy gifts for their family and friends and for giving to the poor and needy who cannot afford it; this can involve buying new clothes, shoes and other items of need. There is also a social aspect involving the preparation of special foods and inviting people for Iftar.
In many Muslim and non-Muslim countries with large Muslim populations, the faithful will abstain from food from dawn to sunset. At sunset, the family will gather the fast-breaking meal known as Iftar. The meal starts with the ritual eating of a date — just as Prophet Muhammad was believed to have done. Then it's time for a prayer to thank God followed by the meal. In many homes, this is a simple meal of fruits and vegetables along with traditional Middle Eastern fare.
Over time, Iftar has grown into banquets and small festivals. This is a time of fellowship with families, friends and surrounding communities, but may also occupy larger spaces at mosques or banquet halls, where a hundred or more may gather at a time.
Most markets close down during evening prayers and the Iftar meal, but then re-open and stay open for a good part of the night. Muslims can be seen shopping, eating, spending time with their friends and family during the evening hours. In many Middle Eastern countries, this can last late into the evening, to early morning. However, if they try to attend to business as usual, it can become a time of personal trials, fasting without coffee or water.
Sometimes referred to as "the night of decree or measures", Laylat al-Qadr is considered the most holy night of the year. Muslims believe that Laylat al-Qadr is the night in which the Qur'an was first revealed to the Prophet Muhammad. Also, it is believed to have occurred on an odd-numbered night during the last 10 days of Ramadan, either the night of the 21st, 23rd, 25th, 27th or 29th. Shiites also commemorate the attack on Imam `Ali ibn Abi Talib and his subsequent martyrdom every year on the 19th, 21st and 23rd of Ramadan.
The holiday of Eid ul-Fitr (Arabic: عيد الفطر) marks the end of the fasting period of Ramadan and the first day of the following month, after another new moon has been sighted. The Eid falls after 29 or 30 days of fasting, per the lunar sighting. Eid ul-Fitr means the Festival of Breaking the Fast; a special celebration is made. Food is donated to the poor (Zakat al-fitr); everyone puts on their best, usually new, clothes; and communal prayers are held in the early morning, followed by feasting and visiting relatives and friends. The prayer is two Raka'ah only, and it is obligatory (Wajib) prayer as opposed to the compulsory (Fard) five daily prayers. Muslims are expected to do this as an act of worship, and to thank God.