response: Did you ever use the horizontal stroke through the center? That is used in Western world handwriting but just about never for computers.
original_response: Yep. That might also be why sometimes people use a horizontal line through the middle of a 7 in handwriting.
history: the number 7 is a great number. I can only say that its the number after 6 and before 8. I heard that 7 has various strokes that makes it look like other numbers? Yes, there is a horizontal stroke for 7 which separates it from 1 for those writing that use long upstrokes for 1. yea those two can get confusing
knowledge: This is analogous to the horizontal stroke through the middle that is sometimes used in handwriting in the Western world but which is almost never used in computer fonts.