7 has always been my favorite number. It's very lucky for me.
7 (seven; ) is the natural number between 6 and 8
Yes, I know. It is also an interesting number (7 deadly sins, etc) and can be known to be a lucky number
various Hindus wrote 7 more or less in one stroke as a curve that looks like an uppercase J but vertically inverted.
That is interesting!
More so ,The western Ghubar Arabs' main contribution was to make the longer line diagonal rather than straight, though they showed some tendencies to making the character