Religious insignia

The Ottoman Empire had a social system based on religious affiliation and religious insignia extended to every social function. It was common to wear clothing that identified the person with their own particular religious grouping and accompanied headgear which distinguish "rank", "profession" throughout the Ottoman Empire. The turbans, fezes, bonnets and head-dresses surmounting Ottoman styles show the "sex", "rank" and "profession" (both civil and military). These styles were accompanied with a strict regulation beginning with the reign of Süleyman the Magnificent. Sultan Mahmud II followed on the example of Peter the Great in Russia in modernizing the Empire and used the dress code of 1826 which developed the symbols (classifications) of feudalism among the public. Kemalist view of change, like the Reforms of Peter I of Russia or Sultan Mahmud II, was achieved through introduction of the progressive customs by decrees, while banning the traditional customs. The view of their social change proposed; if the permanence of secularism was to be assured by removal of persistence of traditional cultural values (the religious insignia), a considerable degree of cultural receptivity by the public to the further social change could be achieved. The "dress code" give a chance for removal of persistence of traditional values in the society.

Kemalists defined a non-civilized (non-scientific, non-positivist) person as one who functioned within the boundaries of superstition. The ulema was not a scientific group, and it was acting according to superstitions developed throughout centuries. Their name was "Gerici". On February 25, 1925 parliament passed a law stating that religion was not to be used as a tool in politics. The question became how this law could be brought to life in a country whose scholars are dominated by the ulema. Kemalist ideology waged a war against superstition by banning the practices of the ulema and promoting the civilized way ("westernization"), with establishing lawyers, teachers, doctors. The ban on the ulema's social existence came in the form of "dress code." The strategic goal was to change the large influence of the ulema over politics by removing them from the social arena. However, there was the danger of being perceived as anti-religious. Kemalists defended themselves by stating "Islam viewed all forms of superstition (non-scientific) nonreligious". The ulema's power was established during the Ottoman Empire with the conception that secular institutions were all subordinate to religion; the ulema were emblems of religious piety, and therefore rendering them powerful over state affairs.[5] Kemalists claimed "the state will be ruled by positivism not superstition." A good example was the practice of medicine. Kemalists wanted to get rid of superstition extending to herbal medicine, potion, and religious therapy for mental illness, all of which were practised by the ulema. They excoriated those who used herbal medicine, potions, and balms, and instituted penalties against the religious men who claimed they have a say in health and medicine. On September 1, 1925, the first Turkish Medical Congress was assembled, which was only four days after Mustafa Kemal was seen on August 27 at Inebolu wearing a modern hat and one day after the Kastamonu speech on August 30.
Official measures were gradually introduced to eliminate the wearing of religious clothing and other overt signs of religious affiliation. Beginning in 1923, a series of laws progressively limited the wearing of selected items of traditional clothing. Mustafa Kemal first made the hat compulsory to the civil servants.[6] The guidelines for the proper dressing of students and state employees (public space controlled by state) was passed during his lifetime. After most of the relatively better educated civil servants adopted the hat with their own he gradually moved further. The Hat Law of 1925 introduced the use of Western style hats instead of the fez. Legislation did not explicitly prohibit veils or headscarves and focused instead on banning fezzes and turbans for men.

Another control on the dress was passed in 1934 with the law relating to the wearing of 'Prohibited Garments'. It banned religion-based clothing, such as the veil and turban, while actively promoting western-style attire.