The authority of both the shogunate and the Imperial Court had weakened, and provincial Governors ("shugo") and other local samurai leaders emerged as the "daimyōs", who battled each other, religious factions (e.g. the Ikkō-ikki), and others for land and power for the next 150 years or so. The period has come to be called the Sengoku period, after the Warring States period in ancient Chinese history. Over one hundred domains clashed and warred throughout the archipelago, as clans rose and fell, boundaries shifted, and some of the largest battles in all of global pre-modern history were fought.