Sindhi literature (سنڌي ادب), is the composition of oral and written scripts and texts in the Sindhi language in the form of prose: (romantic tales, and epic stores) and poetry: (Ghazal, Wai and Nazm). The Sindhi language of the province of Sindh in Pakistan is considered to be the one of the oldest languages of Ancient India, due to the influence on the language of Indus Valley inhabitants. Sindhi literature has developed over a thousand years. According to the historians, Nabi Bux Baloch, Rasool Bux Palijo, and GM Syed, Sindhi had a great influence on the Hindi language in pre-Islamic times. Nevertheless, after the advent of Islam in eighth century, Arabic language and Persian language influenced the inhabitants of the area and were the official language of territory through different periods. Shah Abdul Latif Bhittai, Shah Abdul Karim Bulri, Shaikh Ayaz and Ustad Bukhari are important poets writing in Sindhi. Before Arabs, local Hindu Rajas ruled Sindh. Following invasion in 712, Arabs conquered Sindh and took over government of the area. They did not speak Sindhi, but in spite of this, Sindhi writers and poets played a role in the development of the Sindhi and Arabic languages. This period is usually known as the early period of Sindhi literature. Qur'an was translated into Sindhi language. All previous books which were written in Sindhi were translated into Arabic. In this period Sindhi ode (Qasida) founded. Many books were written in Sindhi and taught into religious seminaries. The earliest book about Sindh history Chach Nama was written in this period. Soomra Dynasty As the Arabs lost control in Sindh, Sindhi-speaking inhabitants defeated the Arabs and became rulers of Sindh. This period is known as the classical period of Sindhi literature, although Persian remained the official language and Arabic remained a religious language. The Soomra dynasty ruled over Sindh for nearly two centuries. In that period, the Sindhi language expanded and new literary ideas were expressed in Gech (گيچ) and Gahi (ڳاھ).