Background: Troyal Garth Brooks (born February 7, 1962) is an American singer and songwriter. His integration of rock and roll elements into the country genre has earned him immense popularity in the United States. Brooks has had great success on the country single and album charts, with multi-platinum recordings and record-breaking live performances, while also crossing over into the mainstream pop arena. According to the RIAA, he is the best-selling solo albums artist in the United States with 148 million domestic units sold, ahead of Elvis Presley, and is second only to the Beatles in total album sales overall.
Context: In 1993, Brooks, who had criticized music stores selling used CDs since it led to a loss in proper royalty payments, persuaded Capitol Records to not ship his 1993 album, In Pieces, to stores which engaged in this practice. This led to several anti-trust lawsuits against the record label, ending with Capitol shipping the albums to the stores anyway.  Despite the delay in shipping, In Pieces was another success, peaking at No. 1 on both the Billboard 200 and Top Country Albums charts, and selling a total of nearly 10 million copies. After a delay in its worldwide release, the album also peaked at No. 2 on the United Kingdom Albums Chart. That same year, "The Red Strokes" became Brooks' first single to make the UK Singles Chart, reaching a high of No. 13; it was followed by "Standing Outside the Fire", which reached No. 23. Previous albums No Fences, Ropin' the Wind and The Chase also remained in the top 30 in the UK Albums Chart.  Brooks' first world tour began in 1993, reaching the UK after many domestic concerts. Brooks sold out venues such as Birmingham's National Exhibition Centre and London's Wembley Arena, a feat never accomplished by an American country music artist. He also began the London radio station, Country 1035. Despite the disdain of the British media, Brooks' overall popularity in the country was evident, with a top disc jockey, Nick Barraclough, referring to Brooks as Garth Vader (a play on Darth Vader) for his "invasion" of the charts and his success in the country genre. Unlike Alan Jackson, who refused to return to the UK after being treated in a similar negative manner by the press, Brooks would later return in 1996 for more performances. Brooks also took is World Tour to other regions throughout Europe, as well as Brazil, the Far East, Australia, and New Zealand.  In 1994, Brooks paid homage to one of his musical influences, Kiss, appearing on the tribute compilation, Kiss My Ass: Classic Kiss Regrooved, a collection of songs performed by popular artists from various genres. The unlikely collaboration of Brooks and Kiss' rendition of "Hard Luck Woman" was performed live on The Tonight Show with Jay Leno, and despite its hard-rock appeal, Brooks' version appeared on the Billboard Hot Country Songs chart.
Question: When did his tour begin?

Answer:
1993,