Troides helena common in many of the localities in which it occurs, was classified as vulnerable in 1985. Helen in Greek mythology Helen was the daughter of Zeus. Cerberus or Kerberos, in Greek and Roman mythology, is a multi-headed hound which guards the gates of the Underworld. This species is protected under Wild Animals Protection Ordinance Cap 170 in Hong Kong. The common birdwing is protected in Indonesia and may also require protection in peninsular Malaya also. It is listed in Appendix II of Convention on the International Trade in Endangered Species of Wild Flora and Fauna (CITES) as are all other
Rebellion of the Three Guards Rebellion of the Three Guards The Rebellion of the Three Guards (), or less commonly the Wu Geng Rebellion, was a civil war, instigated by an alliance of discontent Zhou princes, Shang loyalists, vassal states and non-Chinese peoples against the Zhou government under the Duke of Zhou's regency in the latter 11th century BC. After the fall of the Shang dynasty, King Wu of Zhou had appointed his brothers Guanshu, Caishu and Huoshu as the "Three Guards" of the East to secure the newly conquered Shang lands. After his death and his young son King Cheng's coronation, King Wu's brother