Rock 'n' roll emerged in the late 1940s and early 1950s in the United States, developing from a combination of blues, country, and gospel music styles. During the 1950s, rock 'n' roll came to prominence and had significant social impacts by influencing lifestyles, fashion, attitudes, and language. Technological changes like the electric guitar, amplifier, and 45 rpm record also helped propel the rise and development of rock 'n' roll music.