April 11—18, 1949: The New Democratic Youth League of China holds its first national congress in Beijing

April 11, 1955: The "Kashmir Princess" crash

On 11 April 1955, the "Kashmir Princess" aircraft exploded in midair and crashed into the Pacific Ocean following a bomb explosion. Investigators believed that the explosion had been caused by a time bomb placed aboard the aircraft by a Kuomintang secret agent who was attempting to assassinate Chinese Premier Zhou Enlai. Zhou had been scheduled to board the plane to attend the conference but had changed his travel plans at the last minute.

April 11—13, 1997: The working conference of modern enterprise systems by the State Commission for Restructuring the Economic System is held in Hangzhou