Checkiday.com
Checkiday.com
Checkiday.com
Shop our 2025 calendars. Now available for purchase!

Holidays for Thursday, September 18th, 2025

chevron_leftPrev Nextchevron_right
shuffle
Go to a random event
Switch to list view
Share
Image for Chiropractic Founder's Day
Also known as Chiropractic Awareness Day, Chiropractic Day, Chiropractic Discovery Day, and Chiropractic Rally Day

Observed annually on September 18th
Image for First Love Day
Also known as National First Love Day

Observed annually on September 18th
Image for Free Queso Day
Observed the third Thursday in September
Image for International Read an eBook Day
Also known as International Read an E-book Day

Observed annually on September 18th
Image for National Respect Day
Also known as National RESPECT! Day

Observed annually on September 18th
Image for On This Day in History
Things that happened on this day in years past

Multi-day Events Continuing on Thursday, September 18th, 2025