 Though these two groups generally used different methods, there is little evidence of serious controversy between them on these subjects, with the exception of the criticism leveled by religious scholars at the methods of astronomy due to its association with astrology.At the beginning of the nineteenth century, modern science arrived in the Muslim world but it was not the science itself that affected Muslim scholars.Rather, it "was the transfer of various philosophical currents entangled with science that had a profound effect on the minds of Muslim scientists and intellectuals.