Ceredigion sources of income. Ceredigion's population at the 2011 UK census was 75,900. Its largest town, Aberystwyth, is one of its two administrative centres, the other being Aberaeron. Aberystwyth houses Aberystwyth University, Bronglais Hospital and the National Library of Wales. Lampeter is home to part of the University of Wales Trinity Saint David. Ceredigion has been inhabited since prehistoric times. A total of 170 hill forts and enclosures have been identified across the county and there are many standing stones dating back to the Bronze Age. Around the time of the Roman invasion of Britain, the area was between the realms
Administrative divisions of the Yuan dynasty The most important part of the Yuan Empire was the Central Region, which covered the region of the Yuan capital Khanbaliq (Dadu, modern Beijing). The Central Region consisted of present-day Hebei, Shandong, Shanxi, the south-eastern part of present-day Inner Mongolia and the Henan areas to the north of the Yellow River. Since it was considered the most important region of the dynasty, it was directly governed by the Zhongshu Sheng at Khanbaliq; similarly, another top-level administrative department called the Bureau of Buddhist and Tibetan Affairs (or Xuanzheng Yuan) held administrative rule over Tibet. Branch Secretariats (行中書省), or simply provinces (行省),