Google Maps has sparked controversy by relabeling parts of the South China Sea near the Philippines as the "West Philippine Sea." It has prompted a formal protest from China, emphasizing that the term "South China Sea" is internationally recognized and widely adopted by the United Nations and other organizations. Experts say that a wealth of ancient Western maps reveal an often-overlooked historical truth – the recognition of China's territorial sovereignty and maritime rights and interests in the South China Sea by European societies at the time. CGTN's reporter Feng Yilei explores the evidence to uncover the truth.