Pernell Whitaker (born January 2, 1964) is an American former professional boxer who competed from 1984 to 2001, and has since worked as a boxing trainer. He is a four-weight world champion, having won titles at lightweight, light welterweight, welterweight, and light middleweight; the undisputed lightweight title; and the lineal lightweight and welterweight titles. In 1989, Whitaker was named Fighter of the Year by The Ring magazine and the Boxing Writers Association of America. From 1993 to 1997, The Ring ranked him as the best active boxer in the world, pound for pound.

On February 20, 1999, Whitaker suffered his first convincing defeat against the much bigger, much fresher Felix Trinidad, gamely taking the Puerto Rican the distance in an attempt to win Trinidad's IBF welterweight title. The fight began with both boxers displaying aggressive styles, which included excessive pushing. In the following rounds, both boxers used their jabs most of the time, with Trinidad gaining an advantage when Whitaker attempted to attack inside, eventually scoring a knockdown in round two. In the fourth, fifth and sixth rounds the fighters exchanged combinations. Later in the fight, both boxers fell to the canvas in what were ruled as "accidental slips." On the seventh round, Whitaker displayed more offense, trading power punches with Trinidad, but the champion retained control in the fight's tempo during the eight, ninth and tenth rounds. In the last round, Whitaker, with a badly swollen right eye, displayed a purely defensive stance, avoiding his opponent throughout the round while Trinidad continued on the offensive until the fight concluded. The judges gave the champion scores of 117-111, 118-109 and 118-109. His last fight came on April 27, 2001, against journeyman Carlos Bojorquez. Whitaker, the former lightweight, entered the ring at 155 pounds. He broke his clavicle in round four and was forced to retire; at the time of the stoppage Whitaker was trailing in all the judges' scorecards by 28-29. Following this fight, Whitaker officially announced his retirement. He finished his professional career with an official record of 40-4-1 (17 knockouts). In 2002, The Ring ranked Whitaker as the 10th Greatest Fighter of the Last 80 Years. On December 7, 2006, Whitaker was inducted in the International Boxing Hall of Fame along with contemporaries Roberto Duran and Ricardo Lopez. They were all elected in their first year of eligibility.

Using a quote from the above article, answer the following question: When did Whitaker vs. Trinidad take place?
On February 20, 1999,