The veil is a symbol of prostitution sanctioned by a religion some 7000 years back. To know more we have to travel back in time to Mesopotamia. Mesopotamia refers to area covered by the present day Iraq, eastern Syria, southeastern Turkey and southwest Iran. This area is on the basins of Euphrates and Tigris rivers and is known as the "Cradle of Civilization", since it was here that the first literate communities developed. By 6000 B.C. Mesopotamia had been settled, a process of urbanization evolved and Sumerian civilization took root. Sumer was a collection of city-states around the Lower Tigris and Euphrates Rivers in what is now southern Iraq. Sumerians who are the ancient inhabitants of what is now Iraq is credited with inventing the cuneiform writing. The urban civilization of Mesopotamia dates back to 5,000 BC.
The Sumerians were highly innovative people. Sumerian legacies include writing, irrigation, the wheel, astronomy, and literature. Sumerians were the first people known to have devised a scheme of writing, which were pictograms on clay tablets, and gradually created cuneiform writing. Mesopotamian cuneiform became the lingua franca of trade and international diplomacy. Sumerian cosmology, ethics, theology, even educational methods, passed into other societies throughout the ancient Near East. Sumerian writings passed down the centuries to leave an indelible impression on the modern world, on Judaism, Christianity, and Islam, on the first chapters of Genesis.
Interesting, concerning the Biblical flat and round (disk-shaped) earth:
Mesopotamian religion is the oldest religion recorded. Mesopotamians believed that the world was a flat disc, surrounded by a huge, holed space, and above that, is the heaven. They also believed that water was everywhere, the top, bottom and sides, and that the universe was born from this enormous sea. (from the same source as the above)