Question: When did the construction begin for the former home of the Houston Livestock Show and Rodeo?

Context articles: NRG Center
Houston Rodeo Live
Southwestern Exposition and Livestock Show
Carruth Plaza
Houston Livestock Show and Rodeo
Astrodome
Ask Me How I Know
ConocoPhillips Rodeo Run
North American International Livestock Exposition
Cody Cassidy

The NRG Center (former name Reliant Center) is a convention center in Houston, Texas, United States.
 It is part of the NRG Park complex that was constructed around the NRG Astrodome and NRG Stadium.
 The NRG Center hosts various events year-round, including portions of the Houston Livestock Show and Rodeo, who maintains its offices on the second floor of the building.
 The grand opening of the facility was on April 12, 2002, with the Houston Auto Show.
 Hermes Reed Architects was the architect for the facility.
Houston Rodeo Live is a live album released by Jennifer Peña on November 2, 2004 it was recorded on March 14, 2004 at the Houston Livestock Show & Rodeo in Houston, Texas in front of a crowd of 50,000 spectators.
 The album was made available in both CD and CD/DVD combo, it sold 100,000 units, becoming Pena's seventh Platinum certified album by the RIAA.
 A bestseller in spite of never having an official single, early TV slots promoted a duet with Obie Bermúdez "No Se Nada De Ti" which was later scrapped off the track list.
 Instead it only featured one unreleased song "Por Amor" and a dozen of Jennifer hits "Si Tu Te Vas", "Contigo Otravez" and " El Dolor De Tu Presencia" in live format recorded before the release of her sixth effort "Seducción"; it also included "Vivo Y Muero Y Muero En Tu Piel".
The Southwestern Exposition and Livestock Show, known commonly as the Fort Worth Stock Show and Rodeo is the oldest continuously running livestock show and rodeo.
 It has been held annually in Fort Worth, Texas since 1896, traditionally in mid-January through early February.
 A non-profit organization, the Stock Show has provided millions of dollars in grants and scholarships in its tenure and continues to provide hundreds of thousands of dollars annually to assist the future leaders of agriculture and livestock management.
Carruth Plaza is a Western sculpture garden in Houston, Texas.
 It is part of NRG Park.
 Completed in 2003, the plaza was named after Allen H. "Buddy" Carruth, former chairman of the Houston Livestock Show and Rodeo.
The Houston Livestock Show and Rodeo, also called RodeoHouston or abbreviated HLSR, is the largest livestock exhibitions and rodeo in the world.
 It also includes one of the richest regular-season rodeo events.
 It has been held at NRG Stadium in Houston, Texas, since 2003.
 It was previously held in the Astrodome.
 It is considered to be the city's "signature event", much like New Orleans's Mardi Gras, Dallas's Texas State Fair, San Diego's Comic-Con and New York City's New Year's Eve at Times Square.
The NRG Astrodome, also known as the Houston Astrodome or simply The Astrodome, is the world's first multi-purpose, domed sports stadium, located in Houston, Texas.
 Construction on the stadium began in 1962, and it officially opened in 1965.
 It served as home to the Houston Astros of Major League Baseball (MLB) from its opening in 1965 until 1999, and the home to the Houston Oilers of the National Football League (NFL) from 1968 until 1996, and also the part-time home of the Houston Rockets of the National Basketball Association (NBA) from 1971 until 1975.
 Additionally, the Astrodome was the primary venue of the Houston Livestock Show and Rodeo from 1966 until 2002.
 When opened, it was named the Harris County Domed Stadium and was nicknamed the "Eighth Wonder of the World".
"Ask Me How I Know" is a song recorded by American country music singer Garth Brooks.
 It was released on March 17, 2017 as the second single off Brooks' 2016 album, "Gunslinger".
 The single's release coincided with the announcement of Brooks performing at South by Southwest, as well as the Houston Livestock Show and Rodeo.
The ConocoPhillips Rodeo Run is a point-to-point 10K race and 5K fun run/walk that has been a Houston, Texas tradition since 1988.
 Runners and walkers lead the Houston Livestock Show and Rodeo (HLSR) Parade past thousands of spectators in downtown Houston.
 Race entry fees benefit the Houston Livestock Show and Rodeo Educational Fund.
 The ConocoPhillips Rodeo Run is held annually on the last Saturday in February in Houston, Texas.
North American International Livestock Exposition (NAILE) is a livestock show held each November in Louisville, Kentucky and lasts for two weeks.
 It is billed as the "world's largest all-breed, purebred livestock exposition", with nine major livestock divisions with competitors from the 48 contiguous states.
 These divisions are beef cattle, Boer goats, dairy cattle, dairy goats, draft horses, quarter horses, llamas & alpacas, sheep, and swine.
 A PRCA rodeo, the North American Championship Rodeo, is also held.
Cody Cassidy is a Canadian steer wrestler, and a five time Canadian Finals Rodeo champion.
 In 2010, he qualified for the National Finals Rodeo, and also won the Houston Livestock Show and Rodeo.