However, Seventeen.com were curious, and they've done some ~history~ on the brand.
Erling Persson, the founder, opened his first shop in Sweden in 1947 called Hennes. That is Swedish for 'Hers'. At the time, it was a womens only clothing brand.
Makes perfect sense.
21 years later, in 1968, Hennes changed its name after they acquired another brand, Mauritz Widforss, which was a hunting and fishing equipment retailer based in Stockholm. Random much?
It changed its name to Hennes and Mauritz, but they also started to sell men's and children's fashion.
In 1974, they finally became H&M after they rebranded all their stores! Some people today still call it Hennes.