After the American Civil War (1861-1865), interest in highly skilled games of baseball resulted in many hundreds of local organized clubs springing up, many under the umbrella of the new National Association of Base Ball Players (NABBP) from 1857 to 1870, also sometimes referred to as "the amateur association". These were often with names that were the club's official name, now often erroneously retrofitted as the "nickname". However, all of these club names had the words "Base Ball Club" listed after them ("baseball" was usually spelled then as two words). Examples: