The flag of Malaysia was adopted on September 16, 1963. It is a combination of the crescent and star, a traditional symbol of Islam. Malaysia's flag has a blue field, along with stars and stripes. There are 14 stripes that stand for the thirteen states and one for the Federal Territories of Malaysia, likewise the star has fourteen points for the same reason. Other sources say that the number of stripes is for the thirteen states of Malaysia plus one for Singapore, which at the Federation's inception was a part of Malaysia. The blue field symbolizes the unity of the Malaysian people, and the yellow seen on the crescent and star is the color of the royal family.

On 31 August 1997, the Malaysian flag was given a name "Jalur Gemilang" - Glorious Stripes by then Prime Minister Tun Mahathir bin Mohammad.

Extracted from Wikipedia