For those of you familiar with Portuguese, you know that this word – obrigado – means “thank you.” For those, like me, who have had little to no exposure to the language, well, now you know one word in what is the official language of Portugal and Brazil – and Mozambique, Angola, Guinea-Bissau, East Timor, Equatorial Guinea, Macau, Cape Verde, and Sao Tome and Principe (one country). As we all know from our elementary school history, the Portuguese were incredibly gifted navigators, sailors and explorers, producing Ferdinand Magellan, who completed the first voyage around the world, Vasco da Gama, who discovered an ocean route from Portugal to the East, Gaspar and Miguel Corte Real who explored Greenland and the coast of Newfoundland, Bartholomew Dias, who...