Question:
The Merchandise Mart (or the Merch Mart, or the Mart) is a commercial building located in the downtown Loop, of Chicago, Illinois, United States. When it opened in 1930, it was the largest building in the world, with 4,000,000 square feet (372,000 m2) of floor space. The art deco landmark is located at the junction of the Chicago River's branches. The building is a leading retailing and wholesale destination, hosting 20,000 visitors and tenants per day as of the late 2000s.
The Merchandise Mart was modernized in the late 1950s and 1960s. The Indian chiefs were removed and replaced with concrete plates in 1961, of minimal note to onlookers as skyscrapers did not rise on the north side of the river as predicted. Some of the carvings were later found in a suburban backyard and auctioned in 2014. In 1962, an entrance canopy was constructed over the south for vehicle use.  In 1977, Skidmore, Owings & Merrill designed the Chicago Apparel Center, located on the west side of Orleans Street, which increased the Merchandise Mart's total floor space to 6,200,000 square feet (580,000 m2). Making use of plazas, esplanades and overlooks employed the waterfront location for pedestrian pleasure. In 1988, Helmut Jahn designed an enclosed pedestrian walking bridge over Orleans Street connecting the Mart and the Apparel Center.  After a 10-year, $100 million modernization in the late 1980s that included public utility upgrades, Beyer Blinder Belle's commission in 1989 was to create additional perimeter entrances and restore the display windows, main entrance and lobby. On the south facade, the drive-through canopy was removed and two smaller doorways aside the main entrance were added. Display windows, painted over during the earlier modernization campaign, were restored with clear glass to showcase merchant's wares. New main and corner entrances were added to the rear facade, and the loading dock that occupied the north portion of the first floor of the river level was removed in order to use the bottom deck of North Bank Drive. Improvements to the lobby included restoration of the original glass curtain wall over the entrance, shop fronts and reception desk using terrazzo floors and wall sconces influenced by the original design. The project was completed in 1991.  In November 2007, the building received LEED for Existing Buildings Silver recognition.
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When did the renovations take place

Answer:
The Merchandise Mart was modernized in the late 1950s and 1960s.

Answer the question at the end by quoting:

Callen Radcliffe "Cal" Tjader, Jr. ( CHAY-d@r; July 16, 1925 - May 5, 1982) was an American Latin jazz musician, known as the most successful non-Latino Latin musician. He explored other jazz idioms, even as he continued to perform the music of Cuba, the Caribbean, and Latin America for the rest of his life. Tjader played the vibraphone primarily. He was accomplished on the drums, bongos, congas, timpani, and the piano.
After recording for Fantasy for nearly a decade, Tjader signed with better-known Verve Records, founded by Norman Granz but owned then by MGM. With the luxury of larger budgets and seasoned recording producer Creed Taylor in the control booth, Tjader cut a varied string of albums. During the Verve years Tjader worked with Donald Byrd, Lalo Schifrin, Anita O'Day, Willie Bobo, Armando Peraza, a young Chick Corea, Clare Fischer, Jimmy Heath, Kenny Burrell, and others. Tjader recorded with big band orchestras for the first time, and even made an album based on Asian scales and rhythms.  His biggest success was the album Soul Sauce (1964). Its title track, a Dizzy Gillespie cover Tjader had been toying with for over a decade, was a radio hit (hitting the top 20 on New York's influential pop music station WMCA in May 1965), and landed the album on Billboard's Top 50 Albums of 1965. Titled "Guachi Guaro" (a nonsensical phrase in Spanish), Tjader transformed the Gillespie/Chano Pozo composition into something new. (The name "Soul Sauce" came from Taylor's suggestion for a catchier title and Bobo's observation that Tjader's version was spicier than the original.) The song's identifiable sound is a combination of the call-outs made by Bobo ("Salsa ahi na ma ... sabor, sabor!") and Tjader's crisp vibes work. The album sold over 100,000 copies and popularized the word salsa in describing Latin dance music.  The 1960s were Tjader's most prolific period. With the backing of a major record label, he could afford to stretch out and expand his repertoire. The most obvious deviation from his Latin jazz sound was Several Shades of Jade (1963) and the follow-up Breeze From the East (1963). Both albums attempted to combine jazz and Asian music, much as Tjader and others had done with Afro-Cuban. The result was dismissed by the critics, chided as little more than the dated exotica that had come and gone in the prior decade.  Other experiments were not so easily dismissed. Tjader teamed up with New Yorker Eddie Palmieri in 1966 to produce El Sonido Nuevo ("The New Sound"). A companion LP was recorded for Palmieri's contract label, Tico, titled Bamboleate. While Tjader's prior work was often dismissed as "Latin lounge", here the duo created a darker, more sinister sound. Cal Tjader Plays The Contemporary Music Of Mexico And Brazil (1962), released during the bossa nova craze, actually bucked the trend, instead using more traditional arrangements from the two countries' past. In the late 1960s Tjader, along with guitarist Gabor Szabo and Gary McFarland, helped to found the short-lived Skye record label. Tjader's work of this period is characterized by Solar Heat (1968) and Tjader Plugs In (1968-69), precursors to acid jazz.

Who owns the Verve records?
MGM.