Background: Sevendust is an American alternative metal band from Atlanta, Georgia, formed in 1994 by bassist Vince Hornsby, drummer Morgan Rose and guitarist John Connolly. After their first demo, lead vocalist Lajon Witherspoon and guitarist Clint Lowery joined the group. Following a few name changes, the members settled on the name Sevendust and released their self-titled debut album on April 15, 1997. They have attained success with three consecutive RIAA gold certified albums, a Grammy nomination, and have sold millions of albums worldwide.
Context: In 1994, bassist Vince Hornsby joined drummer Morgan Rose in a band called Snake Nation. John Connolly, a drummer, left his then band and joined Snake Nation as a guitarist. They recorded their first demo. Not happy with vocals, however, Snake Nation spent a year searching for a new singer before finding Lajon Witherspoon. Six months passed, Clint Lowery joined the band, and they renamed themselves Rumblefish.  Rumblefish was short-lived, however, because they found another band with the same name. They renamed themselves Crawlspace, and released "My Ruin" on the Mortal Kombat soundtrack album entitled More Kombat through TVT Records in 1996. Shortly after, another band named Crawlspac' sent notice that they wanted $2,500 for the rights to their name. Rather than purchase the rights, the band members chose to rename themselves Sevendust, a name inspired by the commercial insecticide brand "Sevin Dust". The song Rumble Fish was included on the band's second album, Home.  Sevendust released their self-titled debut, in-part produced by former Twisted Sister guitarist Jay Jay French, on April 15, 1997, known for its heavy riffs, angry vocals and thrash-like drumming, as in the songs "Black" and "Bitch". "Black" became the opening song for nearly every Sevendust concert until 2004. The debut album also contains the song "My Ruin", from the Mortal Kombat soundtrack. Sevendust appeared on the Billboard 200, remained there for sixteen weeks and peaked at 165 on April 4, 1998. The album went gold on May 19, 1999.  In 1998, Sevendust performed at Dynamo Open Air (May 29-31) and Ozzfest 1998 (July through August). In the same year they released a compilation called Live and Loud which featured live footage of the band's performance of September 16, 1998 at Chicago's Metro.
Question: What did the album go gold on?
Answer: May 19, 1999.

Background: John Milton Cage Jr. (September 5, 1912 - August 12, 1992) was an American composer and music theorist. A pioneer of indeterminacy in music, electroacoustic music, and non-standard use of musical instruments, Cage was one of the leading figures of the post-war avant-garde. Critics have lauded him as one of the most influential composers of the 20th century. He was also instrumental in the development of modern dance, mostly through his association with choreographer Merce Cunningham, who was also Cage's romantic partner for most of their lives.
Context: Cage's work from the sixties features some of his largest and most ambitious, not to mention socially utopian pieces, reflecting the mood of the era yet also his absorption of the writings of both Marshall McLuhan, on the effects of new media, and R. Buckminster Fuller, on the power of technology to promote social change. HPSCHD (1969), a gargantuan and long-running multimedia work made in collaboration with Lejaren Hiller, incorporated the mass superimposition of seven harpsichords playing chance-determined excerpts from the works of Cage, Hiller, and a potted history of canonical classics, with fifty-two tapes of computer-generated sounds, 6,400 slides of designs, many supplied by NASA, and shown from sixty-four slide projectors, with forty motion-picture films. The piece was initially rendered in a five-hour performance at the University of Illinois in 1969, in which the audience arrived after the piece had begun and left before it ended, wandering freely around the auditorium in the time for which they were there.  Also in 1969, Cage produced the first fully notated work in years: Cheap Imitation for piano. The piece is a chance-controlled reworking of Erik Satie's Socrate, and, as both listeners and Cage himself noted, openly sympathetic to its source. Although Cage's affection for Satie's music was well-known, it was highly unusual for him to compose a personal work, one in which the composer is present. When asked about this apparent contradiction, Cage replied: "Obviously, Cheap Imitation lies outside of what may seem necessary in my work in general, and that's disturbing. I'm the first to be disturbed by it." Cage's fondness for the piece resulted in a recording--a rare occurrence, since Cage disliked making recordings of his music--made in 1976. Overall, Cheap Imitation marked a major change in Cage's music: he turned again to writing fully notated works for traditional instruments, and tried out several new approaches, such as improvisation, which he previously discouraged, but was able to use in works from the 1970s, such as Child of Tree (1975).  Cheap Imitation became the last work Cage performed in public himself. Arthritis had troubled Cage since 1960, and by the early 1970s his hands were painfully swollen and rendered him unable to perform. Nevertheless, he still played Cheap Imitation during the 1970s, before finally having to give up performing. Preparing manuscripts also became difficult: before, published versions of pieces were done in Cage's calligraphic script; now, manuscripts for publication had to be completed by assistants. Matters were complicated further by David Tudor's departure from performing, which happened in early 1970s. Tudor decided to concentrate on composition instead, and so Cage, for the first time in two decades, had to start relying on commissions from other performers, and their respective abilities. Such performers included Grete Sultan, Paul Zukofsky, Margaret Leng Tan, and many others. Aside from music, Cage continued writing books of prose and poetry (mesostics). M was first published by Wesleyan University Press in 1973. In January 1978 Cage was invited by Kathan Brown of Crown Point Press to engage in printmaking, and Cage would go on to produce series of prints every year until his death; these, together with some late watercolors, constitute the largest portion of his extant visual art. In 1979 Cage's Empty Words was first published by Wesleyan University Press.
Question: Which piece did he achieve fame for?
Answer:
Cheap Imitation