Taíno, or to work in the fields in the island's ginger and sugar industries. They were allowed to live with their families in a bohio (hut) on the master's land, and were given a patch of land where they could plant and grow vegetables and fruits. Africans had little or no opportunity for advancement and faced discrimination from the Spaniards. Slaves were educated by their masters and soon learned to speak the master's language, educating their own children in the new language. They enriched the "Puerto Rican Spanish" language by adding words of their own. The Spaniards considered Africans more malleable than the Taíno, since the latter were unwilling to assimilate. The slaves, in contrast, had little choice but to adapt to their lives. Many converted (at least nominally) to Christianity; they were baptized by the Catholic Church and were given the surnames of their masters. Many slaves were subject to harsh treatment; and women were subject to sexual abuse. The majority of the Conquistadors and farmers who settled the island had arrived without women; many of them intermarried with the African or Taíno women. Their Multiracial descendants formed the first generations of the early Puerto Rican population. In 1527, the first major slave rebellion occurred in Puerto Rico, as dozen of slaves fought against the colonists in a brief revolt. The few slaves who escaped retreated to the forests and mountains, where they resided as maroons with surviving Taínos. During the following centuries, by 1873 slaves had carried out more than twenty revolts. Some were of great political importance, such as the Ponce and Vega Baja conspiracies. By 1570, the colonists found that the gold mines were depleted. After gold mining ended on the island, the Spanish Crown bypassed Puerto Rico by moving the western shipping routes to the north. The island became primarily a garrison for those ships that would pass on their way to or from richer colonies. The cultivation of crops such as tobacco, cotton, cocoa, and ginger became the cornerstone of the economy. With the scale of Puerto Rico's economy reduced, colonial families tended to farm these crops themselves, and the demand for slaves was reduced. With rising demand for sugar on the international market, major planters increased their cultivation and processing of sugar cane, which was labor-intensive. Sugar plantations supplanted mining as Puerto Rico's main industry and kept demand high for African slavery. Spain