- Number of holidays
- 26
- Day of the year
- 289
- Days left in the year
- 76
Global Cat Day was established by Alley Cat Allies in 2002 to advocate for the humane treatment of community cats — the un-owned outdoor cats that trap-neuter-return programs have been shown to stabilize and reduce feral cat populations more effectively than lethal removal. National Boss’s Day was created by Patricia Bays Haroski in 1958 and registered with the U.S. Chamber of Commerce — observed on October 16 unless that date falls on a weekend, in which case it shifts to the nearest weekday. National Mammography Day was established on the third Friday of October to encourage women to schedule mammograms during Breast Cancer Awareness Month — mammography remains the most effective screening tool for breast cancer, which affects 1 in 8 U.S. women. Dictionary Day marks October 16, 1758, the birthday of Noah Webster — the American lexicographer whose An American Dictionary of the English Language (1828) standardized American spelling and created a linguistic identity distinct from British English.
All holidays today
Commemoration Day of King's Father
Conflict Resolution Day
Evacuation Day Tunisia
Get Smart About Credit Day
Global Handwashing Day
HSA Day
I Love Lucy Day
International Credit Union Day
International Day of Rural Women
Kullu Dussehra
Mother's Day in Malawi
National Cheese Curd Day
National Dashi Day
National Esthetician Day
National Lemon Bar Day
National Mushroom Day
National Roast Pheasant Day
Shine a Light Night
Spirit Day
White Cane Safety Day
World Students’ Day
About October 16
October 16 Q&As
What is the most popular holiday on October 16?
On October 16, Global Cat Day is the most globally recognized animal advocacy observance, established by Alley Cat Allies in 2002. National Boss’s Day is the most widely recognized professional relationship observance, and National Mammography Day is the most significant health screening observance.
What animal holidays are on October 16?
October 16 includes Global Cat Day, established by Alley Cat Allies in 2002 to advocate for trap-neuter-return programs for community cats, and National Feral Cat Day, which focuses specifically on the welfare and population management of fully unsocialized outdoor cats.
What countries celebrate holidays on October 16?
October 16 observances span the U.S., which hosts Global Cat Day, National Boss’s Day, National Mammography Day, Dictionary Day, and National Feral Cat Day. National Liqueur Day is observed internationally by spirits enthusiasts.