A group of these people were targeted for slaughter in the Sweet Dew Incident, and another one of them gave himself the title "nine-thousand years." Another group of them was led by Zhang Rang and were known as the Ten Attendants, who opposed Yuan Shao. The author of the Records of the Grand Historian became one of these (*) people after defending Li Ling. The Yellow Turban Rebellion was launched 
A group of these people were targeted for slaughter in the Sweet Dew Incident, and another one of them gave himself the title "nine-thousand years." Another group of them was led by Zhang Rang and were known as the Ten Attendants, who opposed Yuan Shao. The author of the Records of the Grand Historian became one of these (*) people after defending Li Ling. The Yellow Turban Rebellion was launched due to the influence of these people. Another one of these people was a Muslim who commanded a fleet of treasure ships and launched an expedition during the Ming Dynasty, named Zheng He. For 10 points, name these people who often held great power in the court of the Chinese emperor, which generically refers to males with genitals removed.
A group of these people were targeted for slaughter in the Sweet Dew Incident, and another one of them gave himself the title "nine-thousand years."
eunuchs