The Executive Branch, the Legislative Branch, and the Judicial Branch
It's D.
Many alchemists wanted to create the sorcerers stone (creates gold according to a legend).
They studied ores to find out more about the world.
Plus, they also wanted to cure diseases with their practice. (To this day you see stone therapy, which is said to be beneficial for your health)
No "Americans" arrived in North America. However, in 10 A.D. Vikings explored the fringes of North America. Also, Native Americans crossed over from Siberia into Alaska over a land bridge about 12,000 years ago. In 1501, Amerigo Vespucci officially discovered America but thought it was Asia so he did not dock. Then in 1592, Christopher Columbus found and docked in the Caribbean and was the first man to land on America.
