This is our day guide for Thursday September 18th 2025 which shows you at a glance what's happening on this day around the world. Using the calendar on this page, you can look at a day guide for any day. Why not look up your birthday to see which holidays you share it with?
Observances on September 18th 2025
World Bamboo Day
Discover the eco-friendly beauty of bamboo on World Bamboo Day - September 18th! Explore sustainable uses, cultivation, and its positive impact on the environment.
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National HIV/AIDS and Aging Awareness Day
This day brings attention to the growing number of people living long and full lives with HIV and to their health and social needs.
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Public Holidays on September 18th 2025
Independence Day of Chile
On September 18th 1810, Chile broke from Spanish rule, declaring their independence. The Spanish had ruled Chile since the middle of the Sixteenth Century
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