Queen Elizabeth II was Britain's first monarch to be placed on the country's paper notes. There is no word yet on what new bank notes will look like, but there's a longstanding tradition for coins.

The dollar has continued to strengthen against the euro, and for the first time in decades, the two currencies are worth about the same.

The Russian ruble lost nearly half its value when Russia invaded Ukraine. Since then, it has been the top-performing currency in the world.

The Bank of England unveiled the new £50 note on Thursday, nearly two years after saying it would honor the pioneering mathematician who died an outcast because of his homosexuality.

Until Feb. 15, 1971, Britain had 240 pennies to a pound. There were also two farthings in a ha'penny, three pennies in a bit, two shillings in a florin, and five shillings in a crown.