sister sweden and sweden from hetalia

Sweden's Volvo made the three-point seatbelt design patent open and available to other car manufacturers for free, in the interest of safety. It saves one life every 6 minutes.

From the 700s to the 1200s, Baghdad was an Intellectual Center unrivaled in the world. It's House of Wisdom studied mathematics, astronomy, medicine, alchemy and chemistry, zoology, and geography.