The Reaction of the Republican Government to the Labor Movement in Guangdon at the Beginning of the Northern Expedition;

The Reasons for Chen Duxiu to Write His Comments on the Northern Expedition of National Government;

Qian Army s Contribution in Nation Protection, Law Protection and Northern Expedition;

The Committee on Educational Administration of National Government and the Political Situation of the Northern Expedition;

Cartoons and the Northern Expedition;

Four Major Roles of the CPC in the Northern Expedition;

Contribution of Guangdong People to the Northern Expedition;