Zhang ( ; ; ) is among the most common Chinese surnames. In the 1990 edition of Guinness Book of Records, it was listed as the world's most common surname, with over 100 million people worldwide with this surname. It was also ranked third in the People's Republic of China by the Chinese Academy of Sciences in early 2006. [1]. The use of this surname dates back to about 4,700 years ago.
See more at Wikipedia.org...