Problem: Background: Soulfly is an American heavy metal band formed in 1997 and based in Phoenix, Arizona. The original lyrical content revolved around spirituality, political and religious themes, with later albums encompassing other themes including war, violence, aggression, slavery, hatred and anger. Soulfly is led by former Sepultura frontman Max Cavalera, who formed the band after he left the Brazilian group in 1996. To date the band has released ten studio albums, one tour EP, twenty-three singles, one video album, and twelve music videos.
Context: On July 1, 2011, Soulfly has announced that the group has recruited former Static-X and current Asesino, and then Prong, and Ministry bassist Tony Campos into the band, replacing former bassist Bobby Burns, who left the group in July of last year.  In August 2011, Joe Nunez was replaced by Borknagar drummer David Kinkade. In September 2011, the band announced they entered the recording studio to make their next album due for an early 2012 release. In late October it was revealed that recording had finished, and Kinkade claimed that the new album is like "Arise on crack". Confirmed guests on the album were Adam Warren of Oceano and Dez Fafara of Coal Chamber and DevilDriver, although Warren pulled out of recording and was replaced by Cattle Decapitation frontman Travis Ryan. In the December 2011 issue of Metal Hammer, Cavalera stated that the main theme of the album will be slavery, with confirmed song titles "Slave", "Chains", "Legions" (a song about the Roman Empire), "Gladiator", "Redemption of Man by God" (featuring Dez Fafara), and "Revengeance" (with Max's 3 sons featuring: Zyon on drums, Richie on vocals and Iggor writing half the guitar riffs). The album was produced by Zeuss with artwork from Marcelo Vasco, who has designed album artwork for bands such as Borknagar, Obituary, and Dimmu Borgir. On December 6, the album title was announced to be Enslaved and has a release date of March 13, 2012. Soulfly performed at the 13th annual Gathering of the Juggalos in Cave-in-Rock, IL August 2012. Throughout 2012, Soulfly have headlined the "Maximum Cavalera Tour", supported by Incite (fronted by Richie Cavalera) and Lody Kong (featuring Igor Cavalera Jr. and Zyon Cavalera). In October 2012 Kinkade announced his retirement from drumming, leaving Soulfly after their show in Bangkok. Max's son Zyon, who performed during the South America tour earlier in the year, will take over drums for the upcoming US tour and for the foreseeable future.  In April 2013 Max announced Soulfly's intention to record more material after their tour, with producer Terry Date, and confirmed on May 3 that Zyon would perform drums on the album. In July Max announced that the album would be called Savages. The band released the album on September 30 in the UK, October 1 in the US, and October 4 in Europe. Savages features a number of guest vocalists including Igor Cavalera Jr. of Lody Kong, Jamie Hanks of I Declare War, Neil Fallon of Clutch, and Mitch Harris of Napalm Death.
Question: what was enslaved and savages?
Answer: On December 6, the album title was announced to be Enslaved and has a release date of March 13, 2012.

Background: Richard was born on 2 October 1452 at Fotheringhay Castle, the twelfth of thirteen children of Richard Plantagenet, 3rd Duke of York and Cecily Neville at the beginning of what has traditionally been labelled the "Wars of the Roses", a period of "three or four decades of political instability and periodic open civil war in the second half of the fifteenth century", between supporters of Richard's father (a potential claimant to the throne of King Henry VI from birth)--"Yorkists"--in opposition to the regime of Henry VI and his wife, Margaret of Anjou, and those loyal to the crown ("Lancastrians"). When his father and the Nevilles were forced to flee to Ludlow in 1459, Richard and his older brother, George (later Duke of Clarence), were placed in the custody of the Duchess of Buckingham, and the Archbishop of Canterbury. When his father and elder brother Edmund, Earl of Rutland, were killed at the Battle of Wakefield on 30 December 1460, Richard, who was eight years old, and George were sent by his mother, the Duchess of York, to the Low Countries. They returned to England following the defeat of the Lancastrians at the Battle of Towton and participated in the coronation of Richard's eldest brother as King Edward IV in June 1461.
Context: Apart from Shakespeare, Richard appears in many other works of literature. Two other plays of the Elizabethan era predated Shakespeare's work. The Latin-language drama Richardus Tertius (first known performance in 1580) by Thomas Legge is believed to be the first history play written in England. The anonymous play The True Tragedy of Richard III (c. 1590), performed in the same decade as Shakespeare's work, was probably an influence on Shakespeare. Neither of the two plays places any emphasis on Richard's physical appearance, though the True Tragedy briefly mentions that he is "A man ill shaped, crooked backed, lame armed" adding that he is "valiantly minded, but tyrannous in authority". Both portray him as a man motivated by personal ambition, who uses everyone around him to get his way. Ben Jonson is also known to have written a play Richard Crookback in 1602, but it was never published and nothing is known about its portrayal of the king.  Marjorie Bowen's 1929 novel Dickon set the trend for pro-Ricardian literature. Particularly influential was The Daughter of Time (1951) by Josephine Tey, in which a modern detective concludes that Richard III is innocent in the death of the Princes. Other novelists such as Valerie Anand in the novel Crown of Roses (1989) have also offered alternative versions to the theory that he murdered them. Sharon Kay Penman, in her historical novel The Sunne in Splendour, attributes the death of the Princes to the Duke of Buckingham. In the mystery novel The Murders of Richard III by Elizabeth Peters (1974) the central plot revolves around the debate as to whether Richard III was guilty of these and other crimes. A sympathetic portrayal of Richard III is given in The Founding, the first volume in The Morland Dynasty series by Cynthia Harrod-Eagles.  One film adaptation of Shakespeare's play Richard III is the 1955 version directed and produced by Laurence Olivier, who also played the lead role. Also notable are the 1995 film version starring Ian McKellen, set in a fictional 1930s fascist England, and Looking for Richard, a 1996 documentary film directed by Al Pacino, who plays the title character as well as himself. The play has been adapted for television on several occasions.
Question: Why did he murder them?
Answer: