Back in the 1700s, it was normal worldwide for coins to be struck "upside-down"; that is why what you (and I) call "upside down" is technically known as "coin alignment". When the two sides of a coin are both "right-way-up" is called "medal alignment".
Coins were originally made this way because of the way early screw-type, rocker and roller coin presses were assembled. The lower die was inserted into the press facing "right way around" from the point of view of the person inserting the die. The upper die was also inserted into the press "right way around" from the same point of view, but because the upper die is inserted into the press upside-down, the resultant coin becomes "coin-aligned". Thusly:
For coins, it doesn't really matter, since nobody (except coin collectors) really has to flip a coin back and forth between the two sides. But medals, designed to be hung on a ribbon or mount, need to be "right way up" both sides when flipped on that mount.
The rest of the world gradually changed their coins from coin alignment to medal alignment during the 1800s. America and France were two notable holdouts. Now that France uses the euro (which is universally medal-aligned), America is just about the only country to still make coins using the old coin alignment.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis