Hmm. I was going to link the classic https://alistapart.com/article/emen https://alistapart.com/article/emen (and I guess I just did), but I noticed a disclaime

Hmm. I was going to link the classic https://alistapart.com/article/emen https://alistapart.com/article/emen (and I guess I just did), but I noticed a disclaimer at the top pointing out that it “is now obsolete.” And how! It proclaims that not enough text editors support UTF-8 yet, which thankfully hasn’t been true in ages