Rittenhouse was a renowned American astronomer, inventor, mathematician, surveyor, and the first director of the US Mint. A clockmaker by trade, he developed many mathematical instruments, as well as perhaps the first telescope in the US. He later used tools he created to establish several state lines as well as part of the boundary known as the Mason-Dixon Line. What is said to have happened to Rittenhouse in 1769 as he observed the rare transit of Venus that he had long anticipated? Discuss
Source: The Free Dictionary
Tiger’s eye is a yellow-brown, semiprecious chatoyant gemstone consisting of quartz with parallel veins of silicified altered crocidolite. The gems are usually cut en cabochon, meaning with a convex, rounded surface that is polished but unfaceted, in order to best display their chatoyancy. Notable sources of tiger’s eye include the US, Canada, China, Brazil, Namibia, India and Burma. What is tiger iron? 
Thomas D’Arcy McGee was a journalist, Canadian Father of Confederation, and the only Canadian victim of political assassination at the federal level. Patrick J. Whelan, a Fenian sympathizer, was convicted and hanged for the murder, but many now suspect that he was simply a scapegoat and not the killer. The bullet that took McGee’s life had been in the possession of the Library and Archives Canada but was recently reported missing. Where was McGee murdered? .jpg)
The old custom of “selling by candle” is still observed in scattered locations throughout England, among them the village of 
Born into America’s political establishment, Dulles became an extremely influential governmental figure, eventually serving eight years as the US Director of Central Intelligence. He resigned in 1961, after a series of controversial events—most notably the failed Bay of Pigs Invasion of Cuba—aroused criticism of the Central Intelligence Agency. Two years later, he was appointed to the Warren Commission to investigate the assassination of President John F. Kennedy. Who was his famous brother? 
Wasabi is a member of the cabbage family that grows naturally along stream beds in mountain river valleys in Japan. Its root is used as a strong, mustard-hot spice that produces vapors that burn the sinus cavity rather than the tongue. Wasabi paste is often served with sushi and sashimi, but because true wasabi is so expensive, most American and Japanese sushi bars serve imitation wasabi made of what? 
In 1894, after efforts by Frenchman Pierre de Coubertin to revive the ancient Greek Olympics, the newly established International Olympic Committee appointed the Greek capital of Athens as the host city for the first modern international Olympic Games. Held between April 6 and 15, 1896, the games drew athletes from 14 countries for several athletic events, including the first modern marathon. Though women were not allowed to compete, one woman protested the day after the marathon by doing what? 
April 6, 1830, is the day on which