Question: When was the 15th pick of the 2011 NFL born ?

full_context: Document 1: Christian Ponder: Christian Andrew Ponder (born February 25, 1988) is an American football quarterback who is currently a free agent. He was drafted by the Minnesota Vikings with the 12th overall pick in the 2011 NFL Draft and started the majority of games for them from 2011 to 2013. He played college football at Florida State University and was the Seminoles starting quarterback from 2008 to 2010.
Document 2: 2011 Minnesota Vikings season: The 2011 Minnesota Vikings season was the franchise's 51st season in the National Football League, and the first full season under head coach Leslie Frazier, who served as the team's interim head coach for the final six games of the 2010 season. It was also supposed to mark the first season with new starting quarterback Donovan McNabb, who had enjoyed great success with the Eagles but had a subpar year with the Redskins in 2010. McNabb played respectably, having a passer rating of 82.9 and only turning the ball over twice, but his 1–5 record as starter led to him being benched in favor of rookie Christian Ponder in Week 6, and McNabb was later waived on December 1, 2011. The team failed to improve on their 6–10 record from 2010, going 2–6 before their bye week, before being eliminated from playoff contention in week 12 with a 2–9 record. The team also suffered its first six-game losing streak since the 1984 season. Despite a poor year for the team, Jared Allen set a franchise record for most sacks in a season with 22. The team led the league in sacks with 50, but also tied a team record for fewest interceptions caught in a season with only 8.
Document 3: 2011 Miami Dolphins season: The Miami Dolphins season was the team's 42nd season in the National Football League, the 46th overall and the fourth under head coach Tony Sparano. The Dolphins made their first round selection with the 15th pick of the 2011 NFL Draft on Florida offensive lineman Mike Pouncey. The team got off to an 0–7 start and won six of their final nine games, but failed to improve on their record from 2010, resulting in Sparano being fired on December 12, 2011.
Document 4: 1970 Miami Dolphins season: The 1970 Miami Dolphins season was the team's fifth, and first in the National Football League (NFL). The 1970 season marked the team's first winning season, and their first playoff appearance. The 1970 season was also the first season under head coach Don Shula, as he would be the head coach of the franchise until 1995, a span of 25 years as head coach. The team improved on their 3-10-1 record from 1969, and finished the season 10-4, second in the newly aligned AFC East to only eventual champion Baltimore. The Dolphins would get off to a fresh start, starting 4-1 before losing 3 straight to even their record at 4-4. However, Miami would whip off 6 straight to end the season and clinch their first ever winning season and playoff berth. In their first playoff game, they lost 21-14 in the Divisional Round to the Oakland Raiders, ending Miami's season.
Document 5: Ben Roethlisberger: Benjamin Todd Roethlisberger Sr. ( ; born March 2, 1982), nicknamed Big Ben, is an American football quarterback for the Pittsburgh Steelers of the National Football League (NFL). He played college football at Miami University (Ohio), and was drafted by the Steelers in the first round (11th overall) of the 2004 NFL Draft.
Document 6: Gerald McCoy: Gerald Keith McCoy Jr. (born February 25, 1988) is an American football defensive tackle for the Tampa Bay Buccaneers of the National Football League (NFL). He played college football at Oklahoma, where he earned consensus All-American honors, and was drafted by the Buccaneers third overall in the 2010 NFL Draft. Since joining the Buccaneers and the NFL, he has been selected to the Pro Bowl five consecutive years.
Document 7: Mike Pouncey: James Michael Pouncey (born July 24, 1989) is an American football center for the Miami Dolphins of the National Football League (NFL). He played college football for the University of Florida, was a member of a BCS National Championship team, and earned All-American honors. He was drafted by the Dolphins in the first round of the 2011 NFL Draft.
Document 8: Sean Taylor: Sean Michael Maurice Taylor (April 1, 1983 – November 27, 2007) was an American football player who was a free safety for the Washington Redskins of the National Football League (NFL) for four seasons. He played college football for the University of Miami, was a member of the Hurricanes' 2001 BCS National Championship team, and earned unanimous All-American honors. The Washington Redskins chose Taylor with the fifth overall pick of the 2004 NFL Draft. Due to his ferocious hits, several of his Redskins teammates nicknamed him "Meast," a portmanteau word from the expression "half man, half beast."
Document 9: 2016 Miami Dolphins season: The 2016 Miami Dolphins season was the franchise's 47th season in the National Football League, the 51st overall and the first under head coach Adam Gase. The season saw the Dolphins trying to improve upon their 6–10 record from 2015. After a sluggish 1–4 start, the Dolphins would claim six straight wins, and finish the season on a 9–2 run. With their Week 15 win over the New York Jets, the Dolphins clinched a winning record for the first time since 2008, and clinched a playoff berth the following week after the Kansas City Chiefs defeated the Denver Broncos. They were also the first AFC East team, other than the New England Patriots, to qualify for the postseason since the New York Jets did so in 2010. However, they were defeated by the Pittsburgh Steelers in the Wild Card round, ending their season.
Document 10: 2011 San Francisco 49ers season: The 2011 San Francisco 49ers season was the franchise's 66th season overall, and 62nd in the National Football League (NFL). It is the first season under head coach Jim Harbaugh and general manager Trent Baalke. The 49ers rebounded from their disappointing 2010 season to end their streak of eight consecutive non-winning seasons. After defeating the St. Louis Rams in week 13 and attaining a 10–2 record, the team clinched the NFC West and made their first playoff appearance since 2002 (under head coach Steve Mariucci). The 49ers ended the regular season with a 13–3 record, their best since 1997 and earned a bye in the first round of the playoffs. In the Divisional Playoffs they defeated the New Orleans Saints 36–32 and were in the NFC Championship for the first time since 1997 where they lost against the New York Giants 20–17 in overtime, coming just short of returning to the Super Bowl for the first time since 1994. Despite their most successful season in years, the 49ers were 31st in the league in third down conversion percentage in the regular season (29.1) and were 17.9 percent in the playoffs.
Document 11: Luke Kuechly: Luke August Kuechly ( ; born April 20, 1991) is an American football linebacker for the Carolina Panthers of the National Football League (NFL). He was drafted by the Panthers ninth overall in the 2012 NFL Draft. He played college football at Boston College where he was recognized twice as a consensus All-American. Kuechly had an immediate impact his rookie season, as he led the NFL in tackles and won the Associated Press 2012 NFL Defensive Rookie of the Year award, becoming the third youngest recipient in its history. In 2013, Kuechly became the youngest recipient of the AP NFL Defensive Player of the Year Award in its history.
Document 12: 2011 Jacksonville Jaguars season: The Jacksonville Jaguars season was the franchise's 17th season in the National Football League and the 9th under head coach Jack Del Rio, who was fired on November 29 and replaced on an interim basis by defensive coordinator Mel Tucker. The team had hoped to improve on their 8–8 record from 2010, but exceeded their loss total in Week 13, and were officially eliminated from postseason contention. With the 10th pick in the 2011 NFL Draft, they selected quarterback Blaine Gabbert from the University of Missouri, and Gabbert would replace Luke McCown as the starting quarterback in Week 3.
Document 13: Jameis Winston: Jameis Lanaed Winston ( , , born January 6, 1994) is an American football quarterback for the Tampa Bay Buccaneers of the National Football League (NFL). Born and raised in Alabama, he was a highly regarded quarterback in high school, and led his team to the state championship as a junior. Winston played college football for the Florida State Seminoles and as a Redshirt freshman became the youngest player to win the Heisman Trophy and helped lead the Seminoles to a victory in the 2014 BCS National Championship Game. In his sophomore and final year, the Seminoles advanced to the Rose Bowl, part of the College Football Playoff. Winston also played on Florida State's baseball team. Winston was drafted as the first overall pick by the Buccaneers in the 2015 NFL Draft.
Document 14: 2012 Jacksonville Jaguars season: The Jacksonville Jaguars season was the franchise's 18th season in the National Football League. It was the first under the new ownership of Shahid Khan and the first season for head coach Mike Mularkey. The Jaguars entered the season hoping to improve on their 5–11 record from 2011 and return to the playoffs for the first time since 2007, but did not and were eliminated from postseason contention. This season marked the third time in the last five seasons in which the Jaguars finished fourth in the AFC South. The Jaguars finished with a 2–14 record, not only tying the Kansas City Chiefs for the leagues worst record of 2012, but it was also the worst in franchise history. Their 1–7 record at home was also their lowest home record in team history.
Document 15: Von Miller: Vonnie B'Vsean Miller Jr. (born March 26, 1989) is an American football outside linebacker for the Denver Broncos of the National Football League (NFL). Miller played college football at Texas A&M, where he earned consensus All-American honors and was awarded the Butkus Award as the most outstanding college linebacker in the nation. He was drafted by the Broncos second overall in the 2011 NFL Draft. He is a five-time Pro Bowl selection, receiving first-team All-Pro honors as a rookie. At the conclusion of the 2015 NFL season, Miller was named Super Bowl MVP after the Broncos defeated the Carolina Panthers in Super Bowl 50. Following his Super Bowl victory, he appeared on season 22 of "Dancing with the Stars".
ground_truth: July 24, 1989