Question: What is the date of birth of the artist who wrote the songs "Friends" and "Physical"?

Context articles: Seili (album)
A Wonderful Christmas With Ashanti
Between Friends (album)
Every Heartbeat
Wayne B. Nottingham Prize
Smith v. Doe
Finnish sauna
Adam Ant
The B-Sides (EP)
Pythagoras (sculptor)

Seili is the second studio album by Finnish pop singer Jenni Vartiainen.
 It was released by Warner Music Finland digitally on 31 March 2010, with the official physical release following on 14 April.
 From 31 March to the official physical release date, the album was sold at €19 in conjunction with "Ilta-Sanomat".
 The album was re-released on 14 January 2011, in a limited vinyl edition.
 The Finnish-language album, incorporating electro and synthpop elements along with melancholic piano ballads, is named after the island Seili (Själö in Swedish), located off the south-west coast of Finland.
 The album was produced and co-written by Jukka Immonen with Vartiainen writing also two of the songs.
 The main lyricists were Teemu Brunila and Mariska who contributed to the thematical dualism of the album—Brunila wrote the happier songs about publicity and finding love while Mariska wrote the lyrics for the songs that deal with darker and more serious themes, such as death.
 Another lyricist was Paula Vesala (from the pop rock duo PMMP).
 Vartiainen participated more in the production than with her debut album "Ihmisten edessä", by playing for example piano and kantele.
A Wonderful Christmas with Ashanti is the second holiday album by American R&B recording artist Ashanti.
 Originally released to iTunes on December 3, 2013 as a five-song EP, the collection featured recordings from the Lifetime original movie "Christmas In The City".
 On October 27, 2014, it was re-issued as a full-length album in the form of a Deluxe Edition to digital retailers with three newly recorded songs.
 Furthermore, the album was given a physical release exclusively to Target stores in the U.S. on the same date, with an additional two exclusive songs.
 In a 2014 interview with "Arise Entertainment 360", Ashanti revealed that her parents, sister and cousin provided backing vocals for her rendition of "White Christmas", which was recorded for the expanded 2014 re-issue of the album.
Between Friends is the fourth studio album by Canadian singer Tamia, first released by Gallo Records in South Africa on May 12, 2006 (see 2006 in music).
 The album was released on November 14, 2006 in the United States and on November 20, 2006 in the United Kingdom (In HMV stores) on Image Entertainment.
 "Between Friends" was entirely produced by Shep Crawford, besides three tracks by Rodney "Darkchild" Jerkins.
 It peaked at number 66 on the US "Billboard" Hot 200 selling 18,000 copies in its first week.
 To date it has sold about 370,000 copies in the US, 120,000 in South Africa and more than 800,000 worldwide.
 A Gift Between Friends is a 2-disc album comprising a re-release of "Between Friends" and featuring some new Christmas songs by Tamia.
 It was released on October 27, 2007.
"Every Heartbeat" is a 1991 single by American Christian singer Amy Grant.
 It was released as the third single from the "Heart In Motion" album, though it was the second from the album to be released to mainstream pop radio.
 After the unexpected major success of Grant's previous single, "Baby Baby," which topped both the United States' "Billboard" Hot 100 and Adult Contemporary charts, there seemed the question on how to follow it up.
 The chosen single was "Every Heartbeat," and although it did not hit number one, it still managed to make the #2 spot on the Hot 100 and the Adult Contemporary chart for one and six weeks respectively.
 In both cases Every Heartbeat was kept from the top spot by Bryan Adams' song "(Everything I Do) I Do It for You".
 Charlie Peacock wrote the song's music and chorus lyrics, with Grant and Wayne Kirkpatrick composing the remaining lyrics.
 In 2004, Sixpence None The Richer covered "Every Heartbeat" on the album "Full Circle: A Celebration of Songs and Friends", which commemorated Charlie Peacock's 20-year anniversary as a solo recording artist.
 Mark Lowry parodied the song with the title "Every Teacher".
 In 2014, the song was included on Grant's remix compilation album titled "In Motion: The Remixes".
 A digital remix EP was released on iTunes in support of the album which charted at number 13 on the "Billboard" Hot Dance Club Songs chart.
 In 1992 Kids Incorporated covered "Every Heartbeat" in the Season 8 episode "Old Friends".
The Wayne B. Nottingham Prize is awarded annually at the Physical Electronics Conference (PEC), a conference that focuses on new research results in the field of surface science and in the sub-fields of physics and chemistry of interfaces.
 The prestigious Nottingham Prize was established from contributions given in memory of Professor Wayne B. Nottingham of the Massachusetts Institute of Technology by his many friends and associates.
 It was first given in March 1966 at MIT and in March thereafter until February,1974 when the PEC was held at Bell Labs in Murray Hill, NJ.
 This was to avoid overlap in time with the American Physical Society "March" meeting which in the 1970s was about 30 times larger than the PEC.
 Unfortunately the weather in February led to icy roads and delays in the scheduled events.
 In 1975 the PEC was moved to June where it still is today.
 The prize currently consists of a certificate and in 1974 was $200 but has increased recently to $1500, and is awarded to the best student paper presented at the conference.
 A student paper is defined as a paper based on a Ph.D. thesis whose date of submission to the faculty is no earlier than one year before the meeting at which the Prize is given.
Smith v. Doe, 538 U.S. 84 (2003) , was a court case in the United States which questioned the constitutionality of the Alaska Sex Offender Registration Act's retroactive requirements.
 Under the Act, any sex offender must register with the Department of Corrections or local law enforcement within one business day of entering the state.
 This information is forwarded to the Department of Public Safety, which maintains a public database.
 Fingerprints, social security number, anticipated change of address, and medical treatment after the offense are kept confidential.
 The offender's name, aliases, address, photograph, physical description, driver's license number, motor vehicle identification numbers, place of employment, date of birth, crime, date and place of conviction, and length and conditions of sentence are part of the public record, maintained on the Internet.
The Finnish sauna is a substantial part of Finnish culture.
 There are five million inhabitants and over three million saunas in Finland - an average of one per household.
 For Finnish people the sauna is a place to relax with friends and family, and a place for physical and mental relaxation as well.
 Finns think of saunas not as a luxury, but as a necessity.
 Before the rise of public health care and nursery facilities, almost all Finnish mothers gave birth in saunas.
Adam Ant (born Stuart Leslie Goddard; 3 November 1954) is an English singer and musician.
 He gained popularity as the lead singer of new wave group Adam and the Ants and later as a solo artist, scoring 10 UK top ten hits from 1980 to 1983, including three UK No. 1 singles.
 He has also worked as an actor, appearing in over two dozen films and television episodes from 1985 to 2003.
"Friends" b/w "Kick"/"Physical", also known as The B-sides, was the final single from Adam and the Ants.
 All three songs were written by Adam Ant, and were early fan favorites among "Antpeople."
 "Friends" and "Physical" were performed at a John Peel session on 10 July 1978.
 All three tracks had previously been recorded in 1978 for the Ants' first label Decca Records.
 "Kick" at RAK Studios in Chalbert Street, London, produced by Snips, "Friends" and "Physical" at Decca's own studio at Broadhurst Gardens, West Hampstead, produced by Ant himself.
Pythagoras of Samos or Pythagoras of Rhegion, (Ancient Greek: Πυθαγόρας , fl.
 5th century BC) was a statuary from Samos whom Pliny the Elder expressly distinguishes from the more renowned Pythagoras from Rhegion.
 Pliny does however say that the sculptor bore a remarkable personal likeness to the mathematician.
 There is no precise indication of his date.
 Philip Smith accepted the opinion of Karl Julius Sillig (1801—1855) that Pliny's date of Olympiad 87 (c. 428 BC) ought to be referred to this artist rather than to a different Pythagoras, from Rhegium; other writers consider it possible he lived closer to the beginning of the 5th century BC.
 Modern writers consider it certain these two were the same artist, and that this Pythagoras was one of the Samian exiles who moved to Zankle at the beginning of the 5th century BC and came under the power of the tyrant Anaxilas in Rhegium.
 While a Samian by birth, he was a pupil of Clearchus of Rhegium.