One of the main arguments used to prop up the thesis that, as of the 16th century, there was a steady decline in virtually all spheres of the Ottoman Empire's administration and society has been that Muslim societies in the Ottoman Middle Eastproved incapable, or even unwilling, to open up and accept the process of Western modernization. In recent years, however, newly discovered local sources together with a change in methodological approach have led to a growing body of critical studies that challenge the decline theory on a number of points. The 19th century, for example, is increasingly viewed as still very much an Ottoman century, in which the Porte, instead of seeing its power in the provinces diminish under the growing impact of the West, succeeded in strengthening its hold through the centralization policies of the Tanzimat. Another significant example is that of local elites who, instead of opposing Istanbul's reformist policies across the board, are often found to identify and cooperate with the central government.