 
 <translate> Early inhabitants of the Virgin Islands included the Ciboney, Arawaks, and Island Caribs. The first documented Europeans to visit the islands arrived with Christopher Columbus. The islands were occupied by several nations over the next century, including England, the Dutch Republic, France, and Denmark. In 1733, the Danish West India Company purchased Saint Croix from the French and brought together Saint Thomas, Saint Croix, and Saint John as the Danish West Indies. Danish trading posts were set up on the islands, trading in sugar, slaves and other goods. Sugar cane cultivation was a major economic activity for many years, with slaves used as one of the labor sources. However, following increasing humanitarian awareness, laws against slavery and a slave rebellion in 1848, the governor Peter von Scholten officially freed the last slaves the same year. The islands were purchased from the Danish by the United States in 1917 under the Treaty of the Danish West Indies.

Answer this question based on the passage: when did the us acquire the virgin islands? Let's have some stream of consciousness first. <hau> Mazaunan farko na tsibirin Virgin sun haɗa da Ciboney, Arawaks, da kuma tsibirin Caribs. Turawa na farko da aka rubuta don ziyartar tsibirin sun isa tare da Christopher Columbus. Kasashe da yawa sun mamaye tsibiran a cikin ƙarni na gaba, ciki har da Ingila, Jamhuriyar Holland, Faransa, da Denmark. A cikin 1733, Kamfanin Danish West India ya sayi Saint Croix daga Faransanci kuma ya haɗu da Saint Thomas, Saint Croix, da Saint John a matsayin Danish West Indies. An kafa wuraren kasuwanci na Danish a tsibiran, suna cinikin sukari, bayi da sauran kayayyaki. Shuka shuka shine babban aikin tattalin arziki na shekaru da yawa, tare da bayi da aka yi amfani da su a matsayin ɗaya daga cikin hanyoyin aiki. Koyaya, bayan ƙaruwar wayewar kai na ɗan adam, dokoki game da bautar da kuma tawaye na bayi a cikin 1848, gwamnan Peter von Scholten a hukumance ya 'yantar da bayi na ƙarshe a wannan shekarar. An sayi tsibirin daga Danish ta Amurka a 1917 a karkashin Yarjejeniyar Danish West Indies.  Amsa wannan tambayar bisa ga nassi: yaushe ne Amurka ta mallaki tsibiran budurwa? Bari mu sami wasu rafi na sani na farko. 