Hello Kitty was a 1974
Japanese creation, and the character first showed up on a coin
purse. It was brought to the USA in 1976, and by the
2010's, was making 7 billion dollars per year without
advertising. Although popular in the 80's, seeing as how
you could buy plush dolls, stickers, erasers, figurines, coin
banks, make-up stuff, alarm clocks, and just about anything else
you can think of, the toy line really began accelerating in
popularity in the 1990's.
In 1987, the first Hello Kitty
cartoon was released (Hello Kitty's Furry Tale Theatre), and
several more have been released post 1980's. By the early
1990's, Hello Kitty began showing up on video games as well.