Napa cabbage choy (from the Cantonese name, ), and celery cabbage. In the United Kingdom this vegetable is known as Chinese leaf, in New Zealand as wong bok or won bok, and in the Philippines as wombok or pechay baguio. The name wombok is also used in Australia. Another name used in English is petsai or pe-tsai. In Russia it's called pekinskaya kapusta (), literally "Peking cabbage". The first notation of Napa cabbage cultivation date from the 15th Century in the Yangtze River region in China. Then it spread to Korea and Japan. Beginning in the 19th Century with the Chinese diaspora,
Bok Tower Gardens includes her personal communications, photographs, manuscript writings, and family possessions. The American Foundation Collection includes newspaper scrapbooks, meeting minutes, publications, and other manuscript materials. The Edward Bok Newspaper Scrapbook Collection is made up of 42 bound scrapbooks filled with newspaper clippings about Bok's publications and charitable acts. Access to the collections in the Chao Research Center Archives is available by appointment only. To make an appointment the Bok Tower Librarian should be contacted. The Pinewood Estate Mansion holds furniture, ceramics and other objects that were kept in the house before Bok Tower purchased it in 1970. Other collections held at