Core Viewpoint - The 75th anniversary of Hainan's liberation is commemorated through a ceremony aimed at reinforcing revolutionary culture and spirit, contributing to the construction of Hainan Free Trade Port [3][4]. Group 1: Event Overview - The ceremony took place on April 30 at Hainan Liberation Park in Lingao County, marking both the 75th anniversary of Hainan's liberation and the 80th anniversary of the victory in the Chinese People's War of Resistance Against Japanese Aggression [4]. - The event included three main segments: "Commemoration," "Inheritance," and "Learning," starting with the national anthem and a moment of silence for revolutionary martyrs [4]. Group 2: Activities and Participation - Nearly 600 participants attended, including provincial leaders, military representatives, and various community members, highlighting the collective remembrance and respect for revolutionary history [5]. - Activities included the presentation of red-themed books to local institutions, readings of historical telegrams by descendants of veterans, and speeches from students and representatives involved in the Hainan Free Trade Port construction [4].