Ramadan also can be called the month of fast. The earliest official islamic observance of Ramadan began in 623 AD. Allah's messenger Mohammed also said: "Ramadan month is Allah's month, it is more expensive than any month of the year".
The start and end of Ramadan are marked by the appearance of a new crescent moon, which the imam looks up from the mosque's mezzanine and begins when he sees the slender crescent moon.
For more than a billion muslims around the world, Ramadan is the holiest month of the year. During Ramadan, muslims do not eat or drink from sunrise to sunset to express self-sacrifice. During this time, muslims abstain from fasting, pray and read the Koran.
The day after the end of Ramadan is the Muslim festival of eid al-fitr. Holidays usually have three days off. People want to go to the mosque for worship, friends and relatives also want to visit each other to congratulate, many young men and women also specially arranged at this time to hold a grand wedding, more festive atmosphere added.