 <translate> Q: Passage: The Sierra Leone Civil War (1991 -- 2002) began on 23 March 1991 when the Revolutionary United Front (RUF), with support from the special forces of Charles Taylor's National Patriotic Front of Liberia (NPFL), intervened in Sierra Leone in an attempt to overthrow the Joseph Momoh government. The resulting civil war lasted 11 years, enveloped the country, and left over 50,000 dead.

Question: Based on this passage, when did the war start in sierra leone? Let's give stream of consciousness first: <yor> Q: Passage: Ogun abẹle Sierra Leone (1991 - 2002) bẹrẹ ni ọjọ 23 Oṣu Kẹta ọdun 1991 nigbati Revolutionary United Front (RUF), pẹlu atilẹyin lati ọdọ awọn ọmọ ogun pataki ti Charles Taylor's National Patriotic Front of Liberia (NPFL), ṣe idawọle ni Sierra Leone ni igbiyanju lati ṣubu ijọba Joseph Momoh. Ogun abẹ́lé tó bẹ́ sílẹ̀ náà jà fún ọdún mọ́kànlá, ó bo gbogbo orílẹ̀-èdè náà mọ́lẹ̀, ó sì pa àwọn tó lé ní ẹgbẹ̀rún lọ́nà àádọ́ta [50,000].  Ìbéèrè: Níbàámu pẹ̀lú ohun tó wà nínú ẹsẹ Bíbélì yìí, ìgbà wo ni ogun bẹ̀rẹ̀ ní Sierra Leone? Ẹ jẹ́ ká kọ́kọ́ sọ̀rọ̀ nípa ìmọ̀lára: 