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 of Wu Geng's rebellion and the following dismantlement of the Shang state ended any realistic chances for the Shang dynasty's restoration. Despite this and the proclamation of the Mandate of Heaven which delegitimized the Shang rule, militant Shang loyalism and resistance against the Zhou regime persisted well after the Rebellion of the Three Guards. Around 979 BC, sixty years after the rebellion, war broke out between the Zhou kingdom under King Kang, Chang's successor, and the Guifang of Shanxi and northern Shaanxi. The latter were reportedly supported by Shang diehards under the Earl of Ge, and possibly fought for the