This is our day guide for Thursday August 21st 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 August 21st 2025
Day of Memory
A state holiday that commemorates those who lost their lives during the occupation of Czechoslovakia by Warsaw Pact troops that began in August 1968.
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World Entrepreneurs' Day
Today is World Entrepreneurs' Day, a day in which we acknowledge and celebrate those courageous enough to blaze their own trail.
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International Day of Remembrance and Tribute to the Victims of Terrorism
Find out the dates, history and traditions of International Day of Remembrance and Tribute to the Victims of Terrorism
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Public Holidays on August 21st 2025
Ninoy Aquino Day
The holiday commemorates the assassination of former Senator Benigno 'Ninoy' Aquino, Jr. on August 21st 1983
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