Who navigated the St. Lawrence River, claiming Canada for France in 1534?

Jacques Cartier

Who saw four visions including four kingdoms and beast symbols? Which household electronic brand developed the Odyssey² gaming console? Which city hosted the Summer Olympics in 2008? What traditional holiday in Italy known as 'Ferragosto' takes place in August despite being festive in nature? What American military project produced radar technology advancements during WWII?