The dollar has been the world's reserve currency for decades, but it's history goes back centuries – to before the United States was the United States. Brendan Greeley, author of the new book "The Almighty Dollar: 500 Years of the World's Most Powerful Money," joined David Gura and Christina Ruffini on Bloomberg This Weekend to discuss the currency's history, explain its dominance in global financ
World News Bloomberg May 23, 2026