How many people in the country have surnames? How did Qian's surname come from?

1, a rich government sergeant in the Zhou Dynasty, a descendant of Peng Zu, took the official as his surname. According to A Brief History of Clans in Song Dynasty, Qian was classified as "official surname", saying: Zhuan Xu's great-grandson Lu Yisheng was born in Peng Zu and was a sergeant at home, so he was named after an official. According to Records of Historical Records of Chu Family and Surnames Spectrum, Lu Zhong is the great-grandson of Zhuan Xu. His wife was pregnant for three years and gave birth to six children by caesarean section, "Peng Zu three days". Peng Zu is a famous birthday girl. Ishimoto said that he was "a famous Jane, a famous Keng, who kept Tibetan history in Shang Dynasty and made history in Zhou Dynasty, and was 800 years old." His descendant, Fu Peng, was a sergeant in Qianfu during the Western Zhou Dynasty. Staff sergeant, official name, there were staff sergeant, sergeant and corporal in the Zhou Dynasty). Because the capital of the Western Zhou Dynasty was in Haojing (now an, Shaanxi), it was necessary to be an official in Beijing, so the Qian family was formed in Shaanxi. 2. From the surname. This statement is actually a variant and supplement of the first statement. According to the textual research of Hundred Family Names, it is said that Peng Zu's surname is Geng Ming, and later generations took it as their surname, which was later simplified as "money" (some scholars think that there was no "Geng" in ancient times). 3. Change his surname from his home. According to the Tongzhi Genealogy in Qing Dynasty, the Manchu people who lived in Nihe were surnamed Qian. According to the origin of surnames in Taiwan Province Province, during the Qianlong period of Qing Dynasty, seven surnames of aborigines in Taiwan Province Province were given money. There is also the Salawan family of Taiwan Province aborigines, whose Han surname is Qian; During the Ming and Qing Dynasties, the vice president of Tuting in Lin 'an, Yunnan Province, surnamed Qian, was a Hani; Today, Yi, Mongolian, Tujia, Li and other ethnic groups all have this surname. Ancestor: Qian Fu. Emperor Zhuan Xu was the ancestor of the eight surnames in southern China in early times. Born Sun Mingkeng, later named Peng Cheng (now Xuzhou, Jiangsu). So I got Peng's. Peng Keng is a famous longevity person. According to legend, he lived more than 800 years in Xia and Shang Dynasties and was honored as Peng Zu. Peng Zu had Sun Mingfu, who was a sergeant in Qian's family in the Western Zhou Dynasty. Later, his descendants took his official name as surname and called him Qian. They respect Qian Fu as the ancestor of Qian's surname.