cell line. First transistor computer, built at the University of Manchester in November 1953. Popular culture Music Popular music in the early 1950s was essentially a continuation of the crooner sound of the previous decade, with less emphasis on the jazz-influenced big band style and more emphasis on a conservative, operatic, symphonic style of music. Frank Sinatra, Tony Bennett, Frankie Laine, Patti Page, Judy Garland, Johnnie Ray, Kay Starr, Perry Como, Bing Crosby, Rosemary Clooney, Dean Martin, Georgia Gibbs, Eddie Fisher, Teresa Brewer, Dinah Shore, Kitty Kallen, Joni James, Peggy Lee, Julie London, Toni Arden, June Valli, Doris Day, Arthur Godfrey, Tennessee Ernie Ford, Guy Mitchell, Nat King Cole, and vocal groups like the Mills Brothers, The Ink Spots, The Four Lads, The Four Aces, The Chordettes, The Fontane Sisters, The Hilltoppers and the Ames Brothers. Jo Stafford's "You Belong To Me" was the #1 song of 1952 on the Billboard Top 100 chart. The middle of the decade saw a change in the popular music landscape as classic pop was swept off the charts by rock-and-roll. Crooners such as Eddie Fisher, Perry Como, and Patti Page, who had dominated the first half of the decade, found their access to the pop charts significantly curtailed by the decade's end. doo-wop entered the pop charts in the 1950s. Its popularity soon spawns the parody "Who Put the Bomp". Rock-n-roll emerged in the mid-1950s with Sam Cooke, Elvis Presley, Jackie Wilson, Gene Vincent, Chuck Berry, Fats Domino, Little Richard, James Brown, Bo Diddley, Buddy Holly, Bobby Darin, Ritchie Valens, Duane Eddy, Eddie Cochran, Brenda Lee, Bobby Vee, Connie Francis, Johnny Mathis, Neil Sedaka, Pat Boone and Ricky Nelson being notable exponents. In the mid-1950s, Elvis Presley became the leading figure of the newly popular sound of rock and roll with a series of network television appearances and chart-topping records. Chuck Berry, with "Maybellene" (1955), "Roll Over Beethoven" (1956), "Rock and Roll Music" (1957) and "Johnny B. Goode" (1958), refined and developed the major elements that made rock and roll distinctive, focusing on teen life and introducing guitar solos and showmanship that would be a major influence on subsequent rock music. Bill Haley, Elvis Presley, Jerry Lee Lewis, The Everly Brothers, Carl Perkins, Johnny Cash, Conway Twitty, Johnny Horton, and Marty Robbins were Rockabilly musicians. Doo-wop was another popular genre at the time. Popular Doo Wop and Rock-n-Roll bands of the mid to