The Nanjing Botanical Garden Memorial Sun Yat-Sen (Chinese: 南京中山植物园; pinyin: Nánjīng Zhōngshān Zhíwùyúan), established in 1929, became the first national botanical garden in China. The original name, 'Botanical Garden Memorial Sun Yat-Sen', commemorated Dr. Sun Yat-Sen, the pioneer of Chinese democratic revolution. In 1954, it was renamed as Nanjing Botanical Garden Mem. Sun Yat-Sen, Chinese Academy of Sciences. It is one of four major botanical gardens in China.