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.
The Largest Breed is The Old English Mastiff is the LARGEST breed of dog in the world. .They can weigh anywhere from 110 pounds to the 343 pounds. Zorba,an English mastiff ,held the world record of the world's largest dog.my was right about Zorba. He was recorded as being the worlds largest dog. He was a Old English Mastiff and weighed 343 pounds and was 8 feet 3 from nose to tail. The tallest Dogs are the Wolfhounds. The worlds smallest dog is named Danka.