For those that don't know, there are actually some Black communities in China.  From Wiki:
A Guangzhou police raid on a drug ring located in the city's Yuexiu District in 2013 led to the arrest of 168 suspects, most of whom were described by police as citizens of Nigeria and Mali.
			
			
			
				This is awesome!  The first thing I shall learn if I ever travel to China is Chinese ethnic slurs.  This knowledge would no doubt impress the locals...
黑鬼 (hei guǐ) - "Black devil" (directed at Africans).
妖精 - "Demons", used against Manchu people by the Taipings.
阿三 (A Sae) or 红头阿三 (Ghondeu Asae) - Originally a Shanghainese term used against South Asians, it is also used in Mandarin.
Ch'an-t'ou (纏頭; turban heads) – used during the Republican period against Uyghurs.
Nao-tzu-chien-tan (脑子简单; simple-minded) – also used during the Republican period against Uyghurs.
Erzhuanzi (二转子) – children who are mixed Uyghur and Han.  The term was said by European explorers in the 19th century to refer to a people descended from Chinese, Taghliks, and Mongols living in the area from Ku-ch'eng-tze to Barköl in Xinjiang.
绿绿 (Green Green) - used to disparage Muslims as green is considered a holy colour in the Muslim faith.
			
			
				Chinese don't mess around!
			
			
				Quote from: "Angry White Male"
Brainwashed.