Who became wealthy by publishing almanacs in the US and Europe?

Most definitely would be Benjamin Banneker. But he didn't get very wealthy at all. After his death in 1806, a substantial amount of myths came about that exaggerated his accomplishments greatly. Several of these urban legends describe Banneker's alleged activities in the Washington area around the time that he participated in the federal district boundary survey. Others involve his clock and his almanacs. All lack support by historical evidence. Some are even contradicted by such evidence. Hope this helps.