This article focused on four aspects to give a general introduction of Six Confucian Classics being history,which include its reference,connotation,significance and its class essence.

After the examination of the formation of ZHANG Xue-cheng s celebrated doctrine that six classics are history, the article argues that in his later year this doctrine is really based on the proposition that six classics are political documents.

As for his historical studies, for example, he thought that the Six Classics were all history, holding that the circles of Chinese historical studies s.

On the Ontology and the Historical Resources of the "Liu" in Jia Yi s Philosophical Thoughts;

Stable Carbon Isotope Measurements of Hexachlorocyclohexane Isomers;

Abiotic Transformation of Hexachlorocyclohexanes in FeS System and Stable Carbon Isotopic Fractionation During the Transformation;

The feasibility of photocatalytic degradation of hexachlorocyclohexane(BHC) in groundwater with titanium dioxide was proved by a series of experimental investigations.