The True Flag of Islam

I would say this is our flag:

The Crescent actually appeared before the Ottomans, however there is Greek influence in the symbolism of the flags:

"The crescent moon and star symbol actually pre-dates Islam by several thousand years. Information on the origins of the symbol are difficult to ascertain, but most sources agree that these ancient celestial symbols were in use by the peoples of Central Asia and Siberia in their worship of sun, moon, and sky gods.

There are also reports that the crescent moon and star were used to represent the Carthaginian goddess Tanit or the Greek goddess Diana.

The city of Byzantium (later known as Constantinople and Istanbul) adopted the crescent moon as its symbol. According to some reports, they chose it in honor of the goddess Diana. Others indicate that it dates back to a battle in which the Romans defeated the Goths on the first day of a lunar month. In any event, the crescent moon was featured on the city's flag even before the birth of Christ.

The early Muslim community did not really have a symbol. During the time of the Prophet Muhammad (peace be upon him), Islamic armies and caravans flew simple solid-colored flags (generally black, green, or white) for identification purposes. In later generations, the Muslim leaders continued to use a simple black, white, or green flag with no markings, writing, or symbolism on it.

It wasn't until the Ottoman Empire that the crescent moon and star became affiliated with the Muslim world. When the Turks conquered Constantinople (Istanbul) in 1453, they adopted the city's existing flag and symbol." (See Ref:http://islam.about.com/od/history/a/crescent_moon.htm)

Brother Rami, by the way here is the flag you were referring to without the sword, which, I may add I totally agree with you: