What is the difference between RnB and R and B?

RnB, or Rhythm and Blues, is a genre of music that originated in the 1940s and combines elements of jazz, blues, and gospel, characterized by its soulful vocals and strong backbeat. It evolved over the decades, giving rise to contemporary styles that incorporate pop, hip-hop, and electronic music. On the other hand, "R and B" is often used informally to refer to the same genre but can also denote a broader category that includes various subgenres and influences. Essentially, both terms are related, but RnB specifically refers to a distinct musical style.