The 13th National Congress of the Communist Party of China.

The 13th National Congress of the CPC, held from October 25 to November 1 in 1987, defined the Party's basic line during the primary stage of socialism: "To lead the people of all ethnic groups in a united, selfreliant, intensive and pioneering effort to transform China into a prosperous, strong, democratic, culturally advanced and modern socialist country, by making economic development our central task while adhering to the Four Cardinal Principles and persevering in reform and an open policy" ("One central task and two basic points," for short).

(Contributed by Foreign Languages Press)