Francium was discovered by Marguerite Perey in 1939 when she was researching the radioactive decay of actinium-227. The discovery took place at the Curie Institute in Paris. The element takes its name from the country of its discovery â France.
Worldâs Biggest Dog, Worldâs Heaviest Dog. Hercules: The Worldâs Biggest Dog Ever According to Guinness World Records. Hercules was recently awarded the honorable distinction of Worlds Biggest Dog by Guinness World Records. Hercules is an English Mastiff and whas a 38 inch neck and weighs 282 pounds.
Yea, English Mastiffs are one of the largest breed of dog in the world. My English Mastiff is 10 months and he is 180 pounds. These dogs are x-large dogs. They are a handfull to take care of, they eat alot, but they are the sweetest most loveable dogs.