Recently, researches on Zengjing and his works make great achievement, however, lack of historic documents limit the further research.

近年来，国内外有关曾鲸及其绘画艺术的研究已取得较多积极成果，但历史资料的匮乏限制了研究的深入。

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Methods: in this paper, the main research method is to make comprehensive study on the ascertained historic documents, literature review and research analysis.

方法：主要采取历史资料稽考、文献整理和研究探讨相结合的研究方法。

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Jiyu Seal, a kind of ancient seal with blessing Chinese characters carved on it, is an important component of ancient Chinese characters, and it also serves as important historic documents.

吉语玺不但是战国古玺等古文字资料的重要组成部分，而且还是重要的历史文献资料； 它不但具有座右铭、警示牌的功能，还可以反映出古人修身养性、趋吉避祸等思想。

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More spectacular yet, when it comes to historic documents, were a couple of items offered by Seth Kaller and his eponymous White Plains, N.

FORBES: Rare Books and Suicide Bombers

Case studies, historic maps, photographs, newspapers, government documents, and original objects are used to explore the evolution and development of the once rural island through the centuries, beginning with its early Dutch days.

FORBES: History Buff Alert! Staten Island And Dutch New York

While record-keeping had improved "significantly", it said 6% of payments analysed could not be corroborated by relevant documents and action was needed to "identify gaps in historic records".

BBC: Woman passes a street sign on Whitehall