I believe the answer is: Biopsychology
Byopsychology studies the correlation between our physical condition to the behaviour that we displays in our interraction. The chemistry that released by our brain under certain situation would affect the emotion that we felt at that time, which would most likely influence how we behave in response to that emotion.
The first person to sail around Africa and to reach India ( and to get some precious spices from there!) was Portuguese Vasco da Gama, who did this in his journey that started in 1497 and reached India in 1498 ( and returned in 1499)
Bonds are considered very low risk for the very simple reason that they are backed by the power of the credit of the United States.
So, the only REAL risk for investors is that the United States default on its debts, that is, that they don't pay their debts. This could happen if all foreign owned debts are called in at once.
The dude is so inspiring. He was the leader of the civil rights movement, and he used non violent acts to spread awareness about discrimination. He is a legend. There are some awesome articles online about him, and you will be able to find so may things about him.