Introduction to "History of Lianyungang Revolutionary Struggle": Part of the time span of "History of Lianyungang Revolutionary Struggle" is from 1919 to 1949, focusing on showing the Communist Party since the "May 4th Movement", especially after the establishment of the party organization in Lianyungang area. It has a glorious history of people leading the people to resist foreign aggression, defend their homeland, and overthrow the "three mountains".