Ulysses S. Grant allowed reservations to be established in the area. That same year, the state of California evicted the Payómkawichum in the Temecula Valley to be redistributed to American ranchers. In 1882, another round of reservations was permitted to be established under President Chester A. Arthur after the details of the Temecula eviction scheme were revealed.Boarding school programs were established to assimilate the Payómkawichum into subservience and American culture, whose children were enrolled into the Sherman Indian School in Riverside. The Pauma, Pala, and Rincon Bands sued for the right to enroll their children at local schools. Gems were discovered around the Pala Reservation in the 1890s, extracting pink tourmaline, pegmatite, and morganite beryl (the latter being the first discovery of the gem of its kind). Pink tourmaline quickly became the top export as Dowager Empress Cixi of the Qing dynasty spoke highly of the gem in 1902, which became the tribe's main export until 1911 when the Dowager died. The Payómkawichum were allowed to pursue gambling operations on their reservations after its legalization in the 1980s, which allowed them to establish several casinos in their reservations in the 2000s, including but not limited to the Pala Casino Resort and Spa (2000), Pechanga Resort & Casino (2002), and Harrah's Resort Southern California (2004). This newfound wealth also allowed the Pechanga Band to purchase the naming rights to the San Diego Sports Arena, now known as Pechanga Arena. During the October 2007 California wildfires, the Poomacha Fire ravaged the La Jolla Indian Reservation, destroying 92% of the reservation. State and federal agencies provided aid to rebuild the tribe's facilities and residents of the tribe were able to return to the reservation by the end of the next year. Language The Luiseño language belongs to the Cupan group of Takic languages, within the major Uto-Aztecan family of languages. About 30 to 40 people speak the language. In some of the independent bands, individuals are studying the language, language preservation materials are being compiled, and singers sing traditional songs in the language. Pablo Tac, born at San Luis Rey in 1822, devised a written form of Luiseño language through "his study of Latin grammar and Spanish" while working "among international scholars in Rome." Although Tac had to conform to "Latin grammatical constructions, his word choice and his narrative form, along with his continual translation between Luiseño and Spanish, establish an Indigenous framework