The real history of pug is not so clear. We know that dogs from similar breed belonged to Buddhist monasteries from Tibet before year 400.
Some experts said the Pugs are from West Europe and they were moved to Tibet by some European merchants. Another theory said: The Pug is the result from a crossbreeding between french mastiff and small bulldog.
The Pug was present in many reach houses and regal courts during the history. In 1572 the Pug became the official dog of Orange House Holland after it saved William’s life, the Orange Prince of Holland. In 1790the Pug became Josephine’s (Napoleon’s wife) company dog. When Napoleon was imprisoned, the Pug helped Joshepine to communicate with him. They hid the letters in a Pugs collar. more…
Beagle is a hunter dog used for hunting rabbits. It is one of the smallest hunter dog. Beagle has a great smell and is very clever to find the hunted. Since 1950 Beagle is present year by year in top ten most loved breeds in United States.
crossbreeding among 
Harrier and some others hunter dog breeds.
The Komondor is a livestock guardian dog breed originally from Hungary.