Problem: Leonardo di ser Piero da Vinci (Italian: [leo'nardo di ,ser 'pje:ro da (v)'vintSi] ( listen); 15 April 1452 - 2 May 1519), more commonly Leonardo da Vinci or simply Leonardo, was an Italian Renaissance polymath whose areas of interest included invention, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography. He has been variously called the father of palaeontology, ichnology, and architecture, and is widely considered one of the greatest painters of all time. Sometimes credited with the inventions of the parachute, helicopter and tank, he epitomised the Renaissance humanist ideal.

In 1466, at the age of fourteen, Leonardo was apprenticed to the artist Andrea di Cione, known as Verrocchio, whose bottega (workshop) was "one of the finest in Florence". He apprenticed as a garzone (studio boy) to Andrea del Verrocchio, the leading Florentine painter and sculptor of his day (and would do so for 7 years). Other famous painters apprenticed or associated with the workshop include Domenico Ghirlandaio, Perugino, Botticelli, and Lorenzo di Credi. Leonardo would have been exposed to both theoretical training and a vast range of technical skills, including drafting, chemistry, metallurgy, metal working, plaster casting, leather working, mechanics and carpentry as well as the artistic skills of drawing, painting, sculpting and modelling.  Much of the painted production of Verrocchio's workshop was done by his employees. According to Vasari, Leonardo collaborated with Verrocchio on his The Baptism of Christ, painting the young angel holding Jesus' robe in a manner that was so far superior to his master's that Verrocchio put down his brush and never painted again, although this is believed to be apocryphal. Close examination reveals areas that have been painted or touched-up over the tempera using the new technique of oil paint; the landscape, the rocks seen through the brown mountain stream and much of the figure of Jesus bearing witness to the hand of Leonardo. Leonardo may have been the model for two works by Verrocchio: the bronze statue of David in the Bargello and the Archangel Raphael in Tobias and the Angel.  By 1472, at the age of twenty, Leonardo qualified as a master in the Guild of Saint Luke, the guild of artists and doctors of medicine, but even after his father set him up in his own workshop, his attachment to Verrocchio was such that he continued to collaborate with him. Leonardo's earliest known dated work is a drawing in pen and ink of the Arno valley, drawn on 5 August 1473.

Whatwas he known for

Answer with quotes: known as Verrocchio,

Background: Joseph Fidler Walsh (born November 20, 1947) is an American singer, guitarist, and songwriter. In a career spanning more than forty years, he has been a member of five successful rock bands: James Gang, Barnstorm, Eagles, the Party Boys, and Ringo Starr & His All-Starr Band. In the 1990s, he was also a member of the short-lived supergroup the Best. Walsh has also experienced success both as a solo artist and prolific session musician, being featured on a wide array of other artists' recordings.
Context: Walsh is active in charity work and has performed in a number of concerts to raise money for charitable causes. He has also been a personal contributor to a number of charity causes including halfway houses for displaced adult women in Wichita, Kansas. Walsh funded the first talent-based scholarship at Kent State University in 2008.  Walsh's love of Santa Cruz Island grew into a lifelong commitment to conserve the environment there, and he has been active in preserving the island's parks. He is President of the Santa Cruz Island Foundation, and has served on the Foundation's board since the 1980s.  Walsh had often joked about running for office, announcing a mock presidential campaign in 1980 and a vice presidential campaign in 1992. Walsh ran for President of the United States in 1980, promising to make "Life's Been Good" the new national anthem if he won, and ran on a platform of "Free Gas For Everyone". Though Walsh was only 32 at the time of the election and thus would not have met the 35-year-old requirement to actually assume office, he said that he wanted to raise public awareness of the election. In 1992 Walsh ran for vice president with Rev. Goat Carson under the slogan "We Want Our Money Back!"  In an interview to promote his album Analog Man in 2012, Walsh revealed he was considering a serious bid for political office. "I think I would run seriously, and I think I would run for Congress," Walsh told WASH in Washington, D.C. "The root of the problem is that Congress is so dysfunctional. We're dead in the water until Congress gets to work and passes some new legislation to change things."  In 2017, Walsh contacted others in the music industry Zac Brown Band, Gary Clark Jr., Keith Urban to try to organize and perform what became VetsAid  - a concert series along the lines of the Farm Aid program spearheaded by country entertainer Willie Nelson.
Question: What year?
Answer: 1980

Question:
Gwen Renee Stefani (; born October 3, 1969) is an American singer, songwriter, fashion designer, and actress. She is a co-founder and the lead vocalist of the band No Doubt that experienced major success after their breakthrough studio album Tragic Kingdom (1995) along with various successful singles, including "Just a Girl"
Throughout her career as a solo artist, Stefani has won several music awards, including one Grammy Award, four MTV Video Music Awards, one American Music Award, one Brit Award, and two Billboard Music Awards. With No Doubt, she has won two Grammy Awards. In 2005, Rolling Stone called her "the only true female rock star left on radio or MTV" and featured her on the magazine's cover. Stefani received the Style Icon Award at the first People Magazine Awards in 2014. Additionally in 2016, the singer was honored at the Radio Disney Music Awards with a Hero Award, which is given to artists based on their personal contributions to various charitable works.  Stefani has been referred to as a "Pop Princess" by several contemporary music critics. In 2012, VH1 listed the singer at the number thirteen on their list of "100 Greatest Women in Music". Stefani's work has influenced a number of artists and musicians including Hayley Williams of Paramore, Best Coast, Katy Perry, Kesha, Marina and the Diamonds, Stefy, Rita Ora, Sky Ferreira, and Cover Drive. The latter group, a quartet of Barbados musicians, claimed that both Stefani and No Doubt had helped influence their music, to which the lead singer of the group, Amanda Reifer, admitted that she would "pass out" if she were to ever meet Stefani.  The lead single from Love. Angel. Music. Baby., "What You Waiting For?", was considered by Pitchfork to be one of the best singles by Stefani, and would later place it at number sixteen on their "Top 50 Singles of 2004" list. Additionally, "Hollaback Girl" from the aforementioned album would go on to be the first song to digitally sell an excess of one million copies in the United States; it was certified platinum in both the United States and Australia, and peak at number forty-one on Billboard's decade-end charts for 2000-09. Since its release in 2005, "Hollaback Girl" has been called Stefani's "signature song" by Rolling Stone.
Answer this question using a quote from the text above:

Has she been successful?

Answer:
The lead single from Love. Angel. Music. Baby., "What You Waiting For?", was considered by Pitchfork to be one of the best singles by Stefani,