Why is "List of National Treasures of Japan (paintings)" trending?

Wikipedia Overview

The term "National Treasure" has been used in Japan to denote cultural properties since 1897.
The definition and the criteria have changed since the inception of the term. These paintings adhere to the current definition, and were designated national treasures when the Law for the Protection of Cultural Properties was implemented on June 9, 1951. As such, they are restricted in transfer and may not be exported. Owners are required to announce any changes to the National Treasures such as damage or loss and need to obtain a permit for changes in location, transfer of ownership or intended repairs. The items are selected by the Ministry of Education, Culture, Sports, Science and Technology based on their "especially high historical or artistic value". This list contains 167 paintings from 7th-century Asuka period to the early modern 19th-century Edo period. In fact the number of paintings presented is more than 167, because in some cases groups of related paintings are combined to form a single entry. The paintings listed show Buddhist themes, landscapes, portraits and court scenes. Some of the paintings were imported directly from China. The titles of the works are descriptive rather than the artists' titles; therefore it is possible to find alternate names in the literature for a given work.