National Dog Week in USA
National Dog Week in USA is held on September 21. Last Full Week of September. This event in the third decade of the month September is annual. 
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There are more than 48.2 million dogs living in the U.S., according to a pet ownership estimate published by the American Veterinary Medical Association, a nonprofit veterinarian trade organization that’s based in Schaumburg, Illinois. Forty-five percent of U.S. dogs sleep in their owner's bed.
National Dog Week was started by World War I veteran and canine advocate Captain William Lewis Judy in 1928, with the aim of educating pet owners and community members about the responsibilities of dog ownership at a time when dogs were primarily housed on chains in backyards. "The American Kennel Club only recognizes 195 breeds, while the Federation Cynologique International recognizes 360 breeds officially," the site reported in July (2022).
The week-long celebration of man’s best friend focuses on educating dog owners and the public, raising awareness about dog care, and helping lost, homeless, or abused dogs find homes.
Similar holidays and events, festivals and interesting facts
Responsible Dog Ownership Day on September 20 (Third Saturday in September);
Puppy Mill Awareness Day on September 20 (Third Saturday in September);
National Deaf Dog Awareness Week in US on September 21 (Last Full Week in September);
Dogs in Politics Day on September 23
National Walk Your Dog Day in US on October 1
National Black Dog Day n US on October 1
National Walk Your Dog Week in US on October 1 (First Week of October);
National Fire Pup Day in US on October 1