Timeline of Edinburgh history hosts Armed Forces Day; two giant pandas from China, Yang Guang and Tian Tian, arrive at Edinburgh Zoo 2012: The Edinburgh Agreement between the Scottish Government and the UK Government on the terms of the Scottish independence referendum 2014 is signed in Edinburgh. 2013: To mark the 500th anniversary of the Battle of Flodden, a minute's silence for the town's dead was observed at the Mercat Cross on 8 September. 2014: Completion of new tramway between the city centre and Edinburgh Airport Timeline of Edinburgh history This article is a timeline of the history of Edinburgh, Scotland, up to the
Tian "Canopy-Heavens hypothesis" originated from the text Zhoubi Suanjing. The earth is covered by a material tian. "Huntian shuo" (渾天說) "Egg-like hypothesis". The earth surrounded by a tian sphere rotating over it. The celestial bodies are attached to the tian sphere. (See , Chinese creation myth.) "Xuanye shuo" (宣夜說) "Firmament hypothesis". The tian is an infinite space. The celestial bodies were light matters floating on it moved by "Qi". A summary by Ji Meng (郗萌) is in the astronomical chapters of the Book of Jin. Sometimes the sky is divided into "Jiutian" (九天) "the nine sky divisions", the middle sky and