Where Did Rhythm And Blues Originate?

Jerry Wexler devised the term Rhythm and Blues which is commonly referred to as "R&B", in Billboard (an American weekly devoted to music), in the United States in 1949. The term describes several styles of music produced by African-American musicians. The original production of R&B was intended mainly for African-American audiences, but charmed all races and backgrounds, throughout the world.

The phrase came into existence as an alternative to the term race music, which was considered offensive. By the 70s, the acronym "R&B" was used almost exclusively to categorize this form of popular music, and was eventually used as a blanket term to denote other forms of music such as soul and funk.

The original R&B big-timers were small groups that often added jazz, gospel and blues elements to their songs. Their music was strongly influenced by jazz and "jump music", as well as Black.

I dont know,but most of the people say that it is originate from Africa

Gospel, Jazz and Blues originated on the Mississippi River from New Orleans to Chicago, long before Harlem, Kansas City and Paris. It was created by African-Americans who were sharecroppers, freedmen of Color and slaves. This tradition sets aside from any other musical culture today.