The abolition of slavery had important impacts on Mauritius's society, economy and population. The planters brought a large number of indentured labourers from India to work in the sugar cane fields. Between 1834 and 1921, around half a million indentured labourers were present on the island. They worked on sugar estates, factories, in transport and on construction sites. Additionally, the British brought 8,740 Indian soldiers to the island. Aapravasi Ghat, in the bay at Port Louis and now a UNESCO site, was the first British colony to serve as a major reception centre for indentured servants.