Geguyaolun

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Rural Irish landscape, Sligo, Ireland.

Why Is Ireland Two Countries?

earthquake. Heavily damaged school in the town of Yingxiu after a major earthquake struck China's Sichuan Province on May 12, 2008.

The 6 Deadliest Earthquakes Since 1950

Mona Lisa, oil on wood panel by Leonardo da Vinci, c. 1503-06; in the Louvre, Paris, France. 77 x 53 cm.

Why Is the Mona Lisa So Famous?

Baseball laying in the grass. Homepage blog 2010, arts and entertainment, history and society, sports and games athletics

10 Greatest Baseball Players of All Time

Super Typhoon Noru over the western tropical Pacific Ocean as observed by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA Aqua satellite July 31 2017

What Is the Difference Between a Typhoon and a Super Typhoon?

Santa Claus flying in his sleigh, christmas, reindeer

Was Santa Claus a Real Person?

Thanksgiving Turkey with all the sides

Why Do We Eat Turkey on Thanksgiving?

Geguyaolun

work by Cao Zhao

Learn about this topic in these articles:

history of art markets

In art market: East Asia
…first connoisseur’s manual, Cao Zhao’s Geguyaolun (1388; “Essential Criteria of Antiquities”). It included advice on handling dealers and other collectors.
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