Nuzul Al Quran

Today is 17th Ramadhan and it's the day of Nuzul Al Quran.

Nuzul Al Quran is a National Level celebration which falls on every 17 Ramadhan, is a public holiday. Quran is the central religious text of Islam. Muslims believe the Qur’an to be the book of divine guidance and direction for mankind. The Qur'an itself expresses that it is the book of guidance.

Taken from : http://www.marktheday.com/nationholidaydates/mys_nuzulalquran.aspx