Today, August 1, it is 147 years ago since Colorado gained statehood (1876). Here's the state flag, featuring the possibly best usage of a letter in any flag.

I dare you to start posting flags of that all over Colorado to force them to assume it’s right, realize their mistake, and take it down in shame and lament. That’s a better flag because it better converts the C from letter to symbol. And lines are supposed to line up.

Sorry Grey, you’re wrong on Colorado. My most extreme reaction to that video.

It’s not a letter, but Bangladesh and Japan have punctuation on them.

Ohio is all I can think of.