In 1987, UNESCO officially encouraged that its member states "Take part the commemoration on the centenary of the beginning of President Hồ Chí Minh by organizing several activities like a tribute to his memory", considering "the essential and several-sided contributions of President Hồ Chí Minh towards the fields of culture, https://johsocial.com/story10747011/the-basic-principles-of-can-ho