During the late 19th century, American economist Henry George started a global movement for tax reform. The aim of the movement was the abolition of all forms of taxation other than the Single Tax on land value. The effects of the movement on taxation policy, although diminished, can be seen in many parts of the world including Australia, New Zealand, Hong Kong, Taiwan and Singapore. Efforts to promote this form of tax reform in the United States continue under the aegis of organizations such as "The Henry George Foundation of America".