Question: Who was born more recently, Bryan Howard, or Maurice Greene?

full_context: Document 1: Florence Griffith Joyner: Florence Delorez Griffith Joyner (December 21, 1959 – September 21, 1998), also known as Flo-Jo, was an American track and field athlete. She is considered the fastest woman of all time based on the fact that the world records she set in 1988 for both the 100 m and 200 m still stand. During the late 1980s she became a popular figure in international track and field because of her record-setting performances and flashy personal style.
Document 2: Bryan Howard (athlete): Bryan Howard (born October 7, 1976) is an American former sprinter. Howard ran for Canyon Springs High School in Moreno Valley, California. He was the 1993 CIF California State Meet champion in the 100 meters. He was unable to repeat in 1994 due to a false start. Earlier in the season, he had used his fast start to set the National High School Record of 5.69 in the 50 meters at the Sunkist Invitational. That record still stands. The year before, it was announced he had also broken the record, formerly held by Bill Green since 1979. However Paul Turner of University City High in San Diego was later ruled to be the winner and recordholder, which lasted exactly one year. He was also twice runner-up in the 200 meters, in 1993 and 1994, in 1993 behind Calvin Harrison. The 1994 race. Within Riverside County, Howard's records lasted over twenty years until the emergence of Michael Norman. Howard later joined the HSI track team, running on relay teams with world record holder Maurice Greene.
Document 3: Maurice Mitchell: Maurice Mitchell (born December 22, 1989) is an American track and field sprinter who specializes in the 200-meter dash. He has a personal record of 20.13 seconds in that event and has bests of 6.55 seconds for the 60-meter dash and 10 seconds for the 100-meter dash. He represented the United States in the relay at the 2011 World Championships and was selected to compete at the 2012 London Olympics.
Document 4: Jesse Owens: James Cleveland "Jesse" Owens (September 12, 1913March 31, 1980) was an American track and field athlete and four-time Olympic gold medalist in the 1936 Games.
Document 5: Jim Ryun: James Ronald Ryun (born April 29, 1947) is a former American politician and track and field athlete. He won a silver medal in the men's 1500 metres at the 1968 Summer Olympics, and was the first high school athlete to run a mile in under four minutes. He is the most recent American to hold the world record for the mile run. Ryun later served in the United States House of Representatives from 1996 to 2007, representing Kansas's 2nd congressional district for the Republican Party.
Document 6: Colin Jackson: Colin Ray Jackson, CBE (born 18 February 1967) is a Welsh former sprint and hurdling athlete who specialised in the 110 metres hurdles. During a career in which he represented Great Britain and Wales, he won an Olympic silver medal, became world champion twice, World indoor champion once, went undefeated at the European Championships for 12 years and was a two-time Commonwealth champion. His world record of 12.91 seconds for the 110m hurdles stood for over a decade and he remains the 60 metres hurdles world record holder.
Document 7: Michael Norman (sprinter): Michael Norman, Jr. (born December 3, 1997) is an American track and field athlete who competes in the 100 meters, 200 meters, and 400 meters. He graduated from Vista Murrieta High School in Murrieta, California in 2016. He currently attends University of Southern California. He broke the NFHS record in the 400 meters with a time of 45.19 seconds at the 2015 CIF California State Meet held at Buchanan High School in Clovis, California on June 6, 2015. His time is the fastest 400 meters run by a U.S. high school athlete against other high school-aged athletes, along with Aldrich Bailey who also ran 45.19 seconds in Lubbock, Texas on April 28, 2012. The time, however, is not the fastest 400 meters ever run by a U.S. high school-aged athlete according to the List of United States High School National Records in Track and Field. The time of 44.69 seconds set by Darrell Robinson is the fastest. However, it was set at a non-NFHS sanctioned meet, therefore only being acknowledged as a National Record by Track & Field News. Norman's NFHS record is currently awaiting NFHS ratification. On June 30, 2015, Norman was named the Gatorade Player of the Year for his achievements in Track and Field. He is only the 2nd non-senior to win the Gatorade Player of the Year award in the 30-year history of the program and the first male sprinter to win the honors as a non-senior.
Document 8: Usain Bolt: Usain St Leo Bolt ( ; born 21 August 1986) is a retired Jamaican sprinter. He is the first person to hold both the 100 metres and 200 metres world records since fully automatic time became mandatory. He also holds the world record as a part of the 4 × 100 metres relay. He is the reigning Olympic champion in these three events. Because of his dominance and achievements in sprint competition, he is widely considered to be the greatest sprinter of all time.
Document 9: Tim Montgomery: Timothy "Tim" Montgomery (born January 28, 1975) is an American former track and field sprinter who specialized in the 100-meter dash. In 2005, he was stripped of his records—including a now void men's 100 m world record of 9.78 seconds set in 2002—after being found guilty of using performance-enhancing drugs as a central figure in the BALCO scandal. Since retiring from athletics, he has been tried and convicted for his part in a New York-based check fraud scheme and for dealing heroin in the Hampton Roads area of Virginia.
Document 10: Jason Gardener: Jason Carl Gardener, MBE (born 18 September 1975) is a retired British sprint athlete. He won an Olympic gold medal in the 4x 100 metres relay at the 2004 Olympic Games, and is also the 2004 World Indoor Champion at 60 metres.
Document 11: Kim Mortensen: Kimberly Mortensen is the NFHS (United States High School) record holder in the 3200 meter run. Her 9:48.59, run at Cerritos College In Norwalk, California on May 24, 1996 has stood since, including surviving the four year close assault by Jordan Hasay. Her performance, in the qualifying meet for the California Interscholastic Federation State Championships capped an exceptional Senior year at Thousand Oaks High School. She was the third athlete from suburban Ventura County to be named both the Gatorade Player of the Year and the Track and Field News High School Athlete of the Year, a list that includes one time teammate Marion Jones. Earlier in that same season, Mortensen had won the Foot Locker Cross Country Championships. Following her record race, she went on to win the California State Championship race a week later in 9:52.80. Her then championship record race still is the #4 high school time ever, only superseded by Hasay and Laurynne Chetelat's exceptional battle in the 2008 version of that same meet.
Document 12: Forrest Beaty: Forrest O. Beaty is a retired American track and field athlete memorable for setting the National High School record in the straight 220 yard dash, a race slightly longer than the 200 metres straight. It is the longest standing record on the books, although mostly because that distance is not ran anymore. His record time, set on a Cinder track in 1961 as a high school junior at Herbert Hoover High School in Glendale, California was hand timed at 20.2 and equaled the world record for the imperially measured distance. Later in his high school career, he also set the record for the 100-yard dash at 9.4, just .2 off the world record in that event. He was also spectacular on the football field for the school. He won both races at the CIF California State Meet (coming out of the tunnel at East Los Angeles College) in 1961, repeating in the 100y in 1962. He was named the CIF Southern Section Athlete of the Year in 1962, the same award he shared with future Olympic Champion Ulis Williams in 1961. He was also "Track and Field News" High School Athlete of the year in 1962.
Document 13: Tony Miller (athlete): Tony Miller (born March 15, 1969) is an American former sprinter. Attending Archbishop Riordan High School and graduating from there in 1989, Miller eventually set the 100 and 200 meter records for the CIF Central Section, records that still stand today. He was the Pac-10 Champion in 1993 for the 100 meter and 200 meter sprints while attending UCLA. He set times of 10.18 in the 100 meter dash and 20.51 in the 200 meter dash.
Document 14: Maurice Greene (athlete): Maurice Greene (born July 23, 1974) is an American former track and field sprinter who specialized in the 100 meters and 200 meters. He is a former 100 m world record holder with a time of 9.79 seconds. During the height of his career (1997–2004) he won four Olympic medals and was a five-time World Champion. This included three golds at the 1999 World Championships, a feat which had previously only been done by Carl Lewis and Michael Johnson and has since been equaled by three others.
Document 15: Shawn Crawford: Shawn Crawford (born January 14, 1978) is a retired American sprint athlete. He competed in the 100 meters and 200 meters events. He won gold at the 2004 Summer Olympics and silver at the 2008 Summer Olympics in the 200 meters. He originally finished 4th in the race but after the 2nd and 3rd-place winners were disqualified, he moved up to a silver. On April 18, 2013, Crawford was suspended for two years for missing out-of-competition drug tests. His coach, Bob Kersee claimed that Crawford retired after the 2012 United States Olympic Trials and USA Track & Field said he filed retirement papers in 2013.
ground_truth: Bryan Howard