National Dog Biscuit Day in US
National Dog Biscuit Day in US is held on February 23. This event in the third decade of the month February is annual. 
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The dry and hard biscuit texture helps clean the dog's teeth, promoting oral health.
"Dog's bread", made from bran, has been mentioned since at least Roman times.
A dog biscuit is a hard biscuit-based dietary supplement for dogs or other canines, similar to human snack food.
Similar holidays and events, festivals and interesting facts
Walking the Dog Day on February 22
International Dog Biscuit Appreciation Day on February 23 (The first dog biscuits were developed in the mid-19th century by American manufacturer James Spratt);
Iditarod Trail Sled Dog Race on March 1 (First Saturday in March);
What If Cats and Dogs Had Opposable Thumbs Day on March 3
Crufts on March 6 (The World's Largest Dog Show held in Birmingham, England);
K-9 Veterans Day on March 13
Puppy Day on March 23