[LittleBillyInfidel]

Good catch! (Of course, these days, we’re lucky that some writers actually know the difference between the words “than” and “then”.)

[Migraine]

You’re onto them, too, I see.

[econjack]

Then-than...one of my pet peeves. It's easy to remember:

1. Then. Involves a sequence: "I'll go to the Post Office then the store." Often something happening through time.

2. Than. Involves a comparison: "I like steak better than liver."

Another one: who, that

Misuse: "The man that robbed the bank surrendered."

Correct: "The man who robbed the bank surrendered."

Usually, if the context refers to a human, use "who".