2026
Later action
International Non-Binary People's Day
Cook County approved a resolution recognizing International Non-Binary People's Day and its July 14 annual observance. This is later governmental recognition of a community observ…
Evergreen date guide
What is celebrated on July 16?
See the observances and verified observance-history milestones attached to July 16. Each observance keeps its own source and date details.
Verified history
Today in history →On this date in observance history
Selected observance milestones connected to this date, based on reviewed sources.
2025
2022
First observance
National D.R.E.S.S. Syndrome Day
The 2022 launch announcement describes that year’s July 16 campaign activity as the newly created observance and says it takes place each year on July 16.
2021
First observance
Artificial Intelligence Appreciation Day
The founder states that he founded the day on 16 July 2021 and describes it as the first AI Appreciation Day.
1979
Institutional decision
FSM Constitution Day
Public Law 1-28 bears presidential approval dated 16 July 1979.
Reviewed depth
Other in-depth guides on July 16
Source-backedFixed AnnualIn-depth guide
Artificial Intelligence Appreciation Day
The founder’s site states that Jason Kirton founded Artificial Intelligence Appreciation Day on 16 July 2021 and intended it as an annual reminder about AI and ethics.
Source-backedFixed AnnualIn-depth guide
Guinea Pig Appreciation Day
RSPCA confirms current July 16 recurrence; FOUR PAWS attributes the annual observance’s 2016 introduction to Piggles Rescue.
Source-backedFixed AnnualIn-depth guide
National D.R.E.S.S. Syndrome Day
DRESS Syndrome Foundation organizer-side 2022 launch material establishes National DRESS Syndrome Day on July 16 and identifies the foundation co-founders as creators; current foundation an…
Source-backedFixed AnnualIn-depth guide
National Personal Chef Day
Current National Day Calendar material places National Personal Chef Day on July 16 and attributes a 1991 USPCA origin, while USPCA independently documents 1991 personal-chef industry histo…
Source-backedFixed AnnualIn-depth guide
World Snake Day
Government and zoo sources repeatedly observe World Snake Day on 16 July, including India’s National Zoological Park in 2023 and 2025 and a 2026 zoo program. No single creator, founding ins…
Explore the mix
All topics →Topics represented on July 16
5 observances
All observances on this date
Source-backedFixed AnnualIn-depth guide
Artificial Intelligence Appreciation Day
The founder’s site states that Jason Kirton founded Artificial Intelligence Appreciation Day on 16 July 2021 and intended it as an annual reminder about AI and ethics.
Source-backedFixed AnnualIn-depth guide
Guinea Pig Appreciation Day
RSPCA confirms current July 16 recurrence; FOUR PAWS attributes the annual observance’s 2016 introduction to Piggles Rescue.
Source-backedFixed AnnualIn-depth guide
National D.R.E.S.S. Syndrome Day
DRESS Syndrome Foundation organizer-side 2022 launch material establishes National DRESS Syndrome Day on July 16 and identifies the foundation co-founders as creators; current foundation an…
Source-backedFixed AnnualIn-depth guide
National Personal Chef Day
Current National Day Calendar material places National Personal Chef Day on July 16 and attributes a 1991 USPCA origin, while USPCA independently documents 1991 personal-chef industry histo…
Source-backedFixed AnnualIn-depth guide
World Snake Day
Government and zoo sources repeatedly observe World Snake Day on 16 July, including India’s National Zoological Park in 2023 and 2025 and a 2026 zoo program. No single creator, founding ins…
How dates are selected
This page combines fixed annual dates, reusable calendar rules and year-specific dates confirmed for 2026. Variable or historical dates are included only when they are clearly supported.
Read the methodology →