The Palestinian flag (Arabic: علم فلسطين) is based on the Flag of the Arab Revolt, and is used to represent the Palestinian people (since 1964), and the Palestinian Authority.
The flag of Palestinian consists of three equal horizontal stripes (black, white, and green from top to bottom) overlaid by a red triangle issuing from the hoist. These are the Pan-Arab colours. The flag is almost identical to that of the Baath Party, and very similar to the flags of Jordan, and Western Sahara, all of which draw their inspiration from the Arab Revolt against Ottoman rule (1916–1918). Prior to being the flag of Palestine, it was the flag of the short lived Arab Federation of Iraq and Jordan. The flag of the Arab Revolt had the same graphic form, but the colours were arranged differently (white on the bottom, rather than in the middle).
For the flag used during the period of the British Mandate of Palestine, see article on the Flag of the British Mandate of Palestine. Wikipedia