Slavery was introduced wind a Dutch ship traded African slaves for food in 1619. When White settlers were unable to find cheap labour they turn to the slaves imported from Africa.
For the great majority of the Chinese people, for whom social reforms were the main concern, the nationalist leaders concentrated on political and international issues, such as relations with the Western powers and Japan, and failed to implement most of the domestic programs they proposed, most especially land reform. Also, China's leaders bickered and plotted but did little. Lastly, Sun gave lip service to the Nationalist Party's need to deal with the peasant problem.
The Bengal Sadi Reguation.
The Bengal Sadi regualtion banned the Sadi practice in all jurisdictions of British India. The regulation was passed on December 4, 1829 by the Governor General Lord William Bentinck.