Otto is a very prominent first name for men (#504 out of 1220, Top 41%) and also a very prominent last name for all people (#1483 out of 150436, Top 1%). Otto reached its apex rank of #67 in the U.S. in the 1880s, and is at #543 presently.
Triangular trade started in the mid-15th century. Trading took place between America, Europe and Africa. It was also referred to as the Trans-Atlantic trade, as the route used to conduct this trade was on the Atlantic Ocean.
Here's a direct quote from http://www.myleftwing.com/showDiary.do?d... The most famous triangular trade in human history was the 18th century trade between West Africa, the West Indies, and Europe (alternatively: West Africa, the West Indies, and northern colonies in British North America).