Question: How long was the city where the Yongle emperor greeted the person the Ming court thought the representatives were sent by the capitol of Yaxing Coach's headquarters location?

Yaxing Coach (Yangzhou Yaxing Motor Coach Co., Ltd) is a bus manufacturer based in Yangzhou, Jiangsu, China. It is a subsidiary of Jiangsu Yaxing that was founded in 1998. Buses are produced under the "Yaxing", "Yangtse（Yangzlv）", and more recently Asiastar brands. <SEP> the first emperor of the ming dynasty, zhu yuanzhang (the hongwu emperor), who overthrew the yuan dynasty, renamed the city yingtian, rebuilt it, and made it the dynastic capital in 1368. he constructed a 48 km (30 mi) long city wall around yingtian, as well as a new ming palace complex, and government halls. it took 200,000 laborers 21 years to finish the project. the present-day city wall of nanjing was mainly built during that time and today it remains in good condition and has been well preserved. it is among the longest surviving city walls in china. the jianwen emperor ruled from 1398 to 1402. <SEP> Norbu writes that the Yongle Emperor, following the tradition of Mongol emperors and their reverence for the Sakya lamas, showed an enormous amount of deference towards Deshin Shekpa. The Yongle Emperor came out of the palace in Nanjing to greet the Karmapa and did not require him to kowtow like a tributary vassal. During his travels beginning in 1403, Deshin Shekpa was induced by further exhortations by the Ming court to visit Nanjing by April 10, 1407. According to Karma Thinley, the emperor gave the Karmapa the place of honor at his left, and on a higher throne than his own. Rossabi and others describe a similar arrangement made by Kublai Khan and the Sakya Phagpa lama, writing that Kublai would "sit on a lower platform than the Tibetan cleric" when receiving religious instructions from him. <SEP> a monument to the huge human cost of some of the gigantic construction projects of the early ming dynasty is the yangshan quarry (located some 15–20 km (9–12 mi) east of the walled city and ming xiaoling mausoleum), where a gigantic stele, cut on the orders of the yongle emperor, lies abandoned, just as it was left 600 years ago when it was understood it was impossible to move or complete it. <SEP> Archaeological discovery shows that "Nanjing Man" lived in more than 500 thousand years ago. Nanjing was later the capital city of Danyang Prefecture, and had been the capital city of Yangzhou for about 400 years from late Han to early Tang. Zun, a kind of wine vessel, was found to exist in Beiyinyangying culture of Nanjing in about 5000 years ago. In the late period of Shang dynasty, Taibo of Zhou came to Jiangnan and established Wu state, and the first stop is in Nanjing area according to some historians based on discoveries in Taowu and Hushu culture. According to legend,[which?] Fuchai, King of the State of Wu, founded a fort named Yecheng (冶城) in today's Nanjing area in 495 BC. Later in 473 BC, the State of Yue conquered Wu and constructed the fort of Yuecheng (越城) on the outskirts of the present-day Zhonghua Gate. In 333 BC, after eliminating the State of Yue, the State of Chu built Jinling Yi (金陵邑) in the western part of present-day Nanjing. It was renamed Moling (秣陵) during reign of Qin Shi Huang. Since then, the city experienced destruction and renewal many times. [citation needed] The area was successively part of Kuaiji, Zhang and Danyang prefectures in Qin and Han dynasty, and part of Yangzhou region which was established as the nation's 13 supervisory and administrative regions in the 5th year of Yuanfeng in Han dynasty (106 BC). <SEP> Until then, the court was unaware that Deshin Shekpa had died in 1415. Despite this glowing message by the Emperor, Chan writes that a year later in 1446, the Ming court cut off all relations with the Karmapa hierarchs. The Ming court had believed that the representatives of the Karma Kagyu who continued to visit the Ming capital were sent by the Karmapa.