Some context: Led Zeppelin is the eponymous debut studio album by English rock band Led Zeppelin. It was first released on 12 January 1969 in the United States and on 31 March 1969 in the United Kingdom by Atlantic Records. Featuring integral contributions from each of the group's four members, the album was recorded in October 1968 at Olympic Studios in London, and established their fusion style of both blues and rock music. It also attracted a large and devoted following to the band; Zeppelin's take on the emerging hard rock sound endeared them to parts of the counterculture on both sides of the Atlantic Ocean.
In a 1990 interview, Page said that the album took only about 36 hours of studio time (over a span of a few weeks) to create (including mixing), adding that he knew this because of the amount charged on the studio bill. One of the primary reasons for the short recording time was that the material selected for the album had been well-rehearsed and pre-arranged by the band on Led Zeppelin's tour of Scandinavia in September 1968. As Page explained, "[the band] had begun developing the arrangements on the Scandinavian tour and I knew what sound I was looking for. It just came together incredibly quickly."  In addition, since the band had not yet signed their deal with Atlantic Records, Page and Zeppelin's manager Peter Grant paid for the sessions entirely themselves, meaning there was no record company money to waste on excessive studio time. In another interview, Page revealed that the self-funding was to ensure artistic freedom: "I wanted artistic control in a vise grip, because I knew exactly what I wanted to do with these fellows. In fact, I financed and completely recorded the first album before going to Atlantic ... It wasn't your typical story where you get an advance to make an album - we arrived at Atlantic with tapes in hand ... Atlantic's reaction was very positive - I mean they signed us, didn't they?"  The group reportedly recorded their songs for PS1,782. Led Zeppelin archivist Dave Lewis noted that "[w]ith the possible exception of the 12 hours that the Beatles took to record their first album at Abbey Road, rarely has studio time been used so economically. Led Zeppelin's debut album went on to gross more than PS3.5 million, just short of 2,000 times more than they invested!"  For the recordings, Page played a psychedelically painted Fender Telecaster, a gift from Jeff Beck after Page recommended his boyhood friend to the Yardbirds in 1965 as a potential replacement for Eric Clapton on lead guitar. This was a different guitar from those he favoured for later albums (most notably a Gibson Les Paul). Page played the Telecaster through a Supro amplifier. He also used a Gibson J-200, borrowed from Big Jim Sullivan, for the album's acoustic tracks. For "Your Time Is Gonna Come" he used an out-of-tune Fender 10-string steel guitar.  Two other songs from the sessions, "Baby Come on Home" and "Sugar Mama" both appeared on the 2015 Coda reissue (although "Baby Come on Home" was first released on the 1993 compilation Boxed Set 2.)
Why did it only take 36 hours?
A: material selected for the album had been well-rehearsed

Some context: Yelberton Abraham Tittle Jr. (October 24, 1926 - October 8, 2017), better known as Y. A. Tittle, was a professional American football quarterback. He played in the National Football League (NFL) for the San Francisco 49ers, New York Giants, and Baltimore Colts, after spending two seasons with the Colts in the All-America Football Conference (AAFC). Known for his competitiveness, leadership, and striking profile, Tittle was the centerpiece of several prolific offenses throughout his seventeen-year professional career from 1948 to 1964. Tittle played college football for Louisiana State University, where he was a two-time All-Southeastern Conference (SEC) quarterback for the LSU Tigers football team.
A photo of a dazed Tittle in the end zone taken by Morris Berman of the Pittsburgh Post-Gazette on September 20, 1964, is regarded among the most iconic images in the history of American sports and journalism. Tittle, in his 17th and final season, was photographed helmet-less, bloodied and kneeling immediately after having been knocked to the ground by John Baker of the Pittsburgh Steelers and throwing an interception that was returned for a touchdown at the old Pitt Stadium. He suffered a concussion and cracked sternum on the play, but went on to play the rest of the season.  Post-Gazette editors declined to publish the photo, looking for "action shots" instead, but Berman entered the image into contests where it took on a life of its own, winning a National Headliner Award. The photo was published in the October 2, 1964, issue of Life magazine. It is regarded as having changed the way that photographers look at sports, having shown the power of capturing a moment of reaction. It became one of three photos to hang in the lobby of the National Press Photographers Association headquarters, alongside Raising the Flag on Iwo Jima and the Hindenburg disaster. A copy now hangs in the Pro Football Hall of Fame.  After at first having failed to see the appeal of the image, Tittle eventually grew to embrace it, putting it on the back cover of his 2009 autobiography. "That was the end of the road," he told the Los Angeles Times in 2008. "It was the end of my dream. It was over." Pittsburgh player John Baker, who hit Tittle right before the picture was taken, ran for sheriff in his native Wake County, North Carolina in 1978, and used the photo as a campaign tool. He was elected and went on to serve for 24 years. Tittle also held a fundraiser to assist Baker in his bid for a fourth term in 1989.
Who took the famous photo?
A:
Morris Berman