Abdil, I meant no disrespect to you nor certainly to Turkey, native land to my daughter. The information I shared regarding the flag came from Turkish websites. Here are some of the things they said, which I put together. Sorry, if I put them together wrong.
Untill I read these articles I always assumed that Turkey derived it's flag from the common use of the crescent moon as an Islamic symbol. After reading these it seemed to me that the derivation might have gone the other way. That the common use of them as Islamic symbols came about becuase they were on the flags used by the caliphate.
dear grace seeker,
i didnt mean you, in my message,,
but you have right to think in that way after you saw all these from turkish websites..unfortunately,there are many bad people n books ,especially about ottomans,,,its better to read old books about history,(i mean,older than this republic of turkey)..
about the flag; ottomans began to use this flag in 15th century,especially after they began to be the leader of islamic world,,and this happened especially after the conquest of istanbul...
the crescend of star maybe some old symbols,but ottomans didnt use them for these pagan or ancient meanings,,in their emblem;there are 2 flags,once is this crescend n star on red base,and the other is 3 crescend on green base,,and right under the red flag,there is the Kur'an,,,maybe you saw it already,,,
anyway,take care ,,peace be upon you brother
north malaysian brother,thanks for ur good intention,,,im happy if you got my point,,stay in health inshaAllah,,
may Allah bless you inshaAllah,,
wassalam,,