Jul
August 2025
Sep
On This Day 5 mins Read

August 15: Facts & Historical Events On This Day

Did you know that on this day, August 15, 1519, Spanish conquistador Pedro Arias Dávila founded Panama City?

Fact Checked Human Written Verified Sources Regularly Updated

August 15th is officially Check The Chip Day & Relaxation Day.

Welcome to the 227th day of the year! We’re slowly getting through the year, and now have only 138 days remaining in 2025.

If this day is your birthday or you want to know more about August 15, then we welcome you to a day that has a huge importance in history. Find out what historical events happened on this day, and what makes today so important.

Did you know that on this day, August 15, 1519, Spanish conquistador Pedro Arias Dávila founded Panama City? It became a launching point for the conquest of Peru and a transit point for riches heading back to Spain.

Keep reading for more fun & interesting facts about August 15th in history!

Historical Events

What memorable events happened on August 15 in history? Keep reading to find out!

The first-ever World Humanoid Robot Games opened in Beijing, China, featuring over 500 androids from 16 countries.

Kristofer Helgen announced the discovery of the olinguito, a mammal of the raccoon family Procyonidae.

OTD in 2013: Kristofer Helgen announced the discovery of the olinguito

The olinguito was the first new carnivorous species found in the Americas in 35 years.

Richard Branson’s attempt at obtaining the fastest Atlantic crossing ended when his speed boat crashed.

The 32-ton vessel, The Virgin Atlantic Challenger, overturned just off the southwest coast of England, jeopardizing Branson's attempt at making the fastest journey across the Atlantic Ocean.

Ohio State University’s Big Ear radio telescope detected a deep-space radio signal.

The signal from the Saggitarius constellation bore all the signs of being extraterrestrial in origin. When an astronomer discovered the signal recording a few days later, he was stunned and impressed with it and wrote "Wow!" on the computer printout, leading to the signal being called the Wow! Signal.

Bahrain declared independence from Britain.

After six years at war, Japan surrendered, marking the end of World War II.

OTD in 1945: After six years at war

This day was named VJ Day, which stands for Victory in Japan day. It marked the victory of the world's allied nations in the enemy's defeat, which brought WWII to an end.

New Zealand’s All Blacks played their first international test against Australia at Sydney Cricket Ground.

An all-steel church called San Sebastian Church opened in Manila, Philippines.

The church was designated a National Historic Landmark in 1973 and a National Cultural Treasure in 2011.

The Indian Appropriations Act added the sell or starve clause.

The clause meant that rations were cut until the Sioux people of Black Hills in South Dakota gave up their land.

The Transcontinental Railroad linking up the East and West halves of the US was completed in Colorado.

The world’s second oldest theme park, Tivoli Gardens, opened in Copenhagen, Denmark.

OTD in 1843: The world's second oldest theme park

One thousand Nigerian troops were airlifted into Liberia to end the occupation of Monrovia.

Spanish conquistador Pedro Arias Dávila founded Panama City.

The Sistine Chapel in the Vatican opened for its first mass.

OTD in 1483: The Sistine Chapel in the Vatican opened for its first mass.

Mainz Psalter was published, making it the first book with a printed publication date on it.

The foundations for Cologne Cathedral were laid in preparation for its construction.

Cave monastery Vardzia was blessed by Queen Tamar of Georgia.

The area consists of fifteen churches, with the main church being called "Assumption of Mary."

Famous Births

Is today your birthday? If so, you share this special day with Emily Kinney! Check out more famous people born on this day below.

1990

Jennifer Lawrence

American Actress

Age

35 years old

Born IN

Kentucky, USA

1989

Joe Jonas

American Singer

Age

36 years old

Born IN

Arizona, USA

1994

Tristan Evans

English Singer

Age

31 years old

Born IN

England, UK

1985

Emily Kinney

American Actress

Age

40 years old

Born IN

Nebraska, USA

Birthday & Zodiac

People who were born on this day all share the Leo zodiac sign.

Leos are larger than life, and they love to be seen and heard. Their typical traits include being confident, ambitious, loyal, generous, and big-hearted.

People born in August all have the Peridot birthstone. The peridot is a green gem that can be found in meteorites that have fallen to Earth. This makes the peridot the only wearable transparent gemstone that can come from out of this world.

If you were lucky enough to be born on August 15th, you were likely conceived around November 22nd, the year before.

Babies conceived on this day will likely be born around May 8, 2026.

Quotes

Of all of the quotes said on this day, these are the most well-known ones spoken on Aug 15 throughout history.

1966

“One of television’s great contributions is that it brought murder back into the home, where it belongs.”

Alfred Hitchcock

(English Filmmaker)

Special Holidays

If you've got a few minutes spare today, why not celebrate these special holidays.

United States

National Check The Chip Day

We all want to do our best to protect our furry friends, and ensuring you can be contacted if they get lost is critical to their wellbeing! So take part in National Check The Chip Day today by booking your pet into a vet clinic to check their chip is in proper working order.

United States

National Relaxation Day

Today is National Relaxation Day, which can only mean one thing - it’s time to chill out. Today means doing whatever it is you find the most relaxing. For some, that’s reading a good book, swinging in a hammock, going for a spa day, or just sleeping in. You do you!

Fact Of The Day

Days Until

Your countdown to 2025's upcoming special days!

  • Halloween

    77 days

  • Christmas Day

    132 days

  • New Year's Day

    139 days

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About The Author

Luke Ward
Owner

Luke Ward is the owner of FactstoryHub. He has over 14 years of experience in researching, informative writing, fact-checking, SEO & web design. In his spare time, he loves to explore the world, drink coffee & attend trivia nights.

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