Birth chart on this day
Discover the planets positions on August 21st, 1945 as well as what the sky looked like at your place
see horoscope and birth chart for August 21, 1945What happened on Tuesday, August 21, 1945?
About August 21st, 1945, in brief:
- Historical events: On August 21, 1945, physicist Harry Daghlian was performing a criticality experiment at the Los Alamos Laboratory in New Mexico. During the experiment, he accidentally dropped a tungsten carbide brick onto a plutonium core, causing a supercritical reaction. He received a fatal dose of radiation and died 25 days later from acute radiation poisoning.
- Day of the week: August 21st, 1945 was a Tuesday
- Zodiac Sign: Leo (in western zodiac), Rooster (in Chinese zodiac)
- Moon Phase: Waxing gibbous
- #1 US song: Hong Kong Blues by Hoagy Carmichael
- Popular movie: The Lost Weekend directed by Billy Wilder
More about August 21st, 1945? See below for more news and curiosities on August 21st, 1945.
A meaningful gift for someone born on August 21, 1945
Give them the year they were born
The personalized 1945 nostalgia year poster is a beautifully researched snapshot of the books, songs and movies that shaped 1945.
- Best-selling books from 1945
- Popular songs from 1945
- Popular movies from 1945
$9.90 · Personalized digital poster delivered instantly by email
Create a 1945 year posterWant the exact date instead? Create a August 21, 1945 poster
See our satisfaction and refund policy.
Real poster exampleTable of contents
- August 21, 1945: What happened on that day?
- What day of the week was August 21, 1945?
- Who was born on August 21, 1945?
- August 21, 1945: What famous people died on that day?
- August 21, 1945: Number 1 song on that day
- August 21, 1945: What is The Zodiac Sign for that day?
- August 21, 1945: What was the moon phase on that day?
- How old is someone born on August 21, 1945?
- Back in 1945
August 21, 1945: What happened on that day?
Here's what happened on August 21, 1945:
- Fatal criticality accident at Los Alamos On August 21, 1945, physicist Harry Daghlian was performing a criticality experiment at the Los Alamos Laboratory in New Mexico. During the experiment, he accidentally dropped a tungsten carbide brick onto a plutonium core, causing a supercritical reaction. He received a fatal dose of radiation and died 25 days later from acute radiation poisoning. source: en.wikipedia.org
- End of Lend-Lease program On August 21, 1945, President Harry S. Truman announced the discontinuation of the Lend-Lease program, which had been supplying aid to Allied nations during World War II. The program was officially terminated, and all outstanding contracts were canceled, except where Allied governments agreed to take them over. source: history.state.gov
August 21, 1945: What were the magazines covers and newspapers that day?
LIFE magazines from August 1945
Looking for other vintage memories?Look at our old newspapers and magazines page
What day of the week was August 21, 1945?
August 21, 1945 was a Tuesday and it was the 233rd day of the year 1945 in the Gregorian calendar.
August 21, 1945 can also be written as 8/21/1945 in the US and as 21/8/1945 in UK and Europe.
Who was born on August 21, 1945?
Famous people born on August 21, 1945:
![Patty McCormack]()
Patty McCormackPatty McCormack is an American actress best known for her early role as Rhoda Penmark in the 1956 film 'The Bad Seed,' which earned her an Academy Award nomination for Best Supporting Actress. Over her career, McCormack has appeared in numerous film, television, and stage productions and maintained a steady presence in the entertainment industry from childhood into adulthood. [bio]
![Willie Lanier]()
Willie LanierLegendary NFL linebacker who played for the Kansas City Chiefs, inducted into the Pro Football Hall of Fame in 1986.
![Basil Poledouris]()
Basil PoledourisRenowned Greek-American film composer known for iconic movie soundtracks, including works for 'Conan the Barbarian' and 'RoboCop'.
![Gérard Manset]()
Gérard MansetFrench multi-talented artist known for his music, painting, and photography.
![Nicole Massari]()
Nicole MassariAmerican television executive who produced local shows and developed her own production company in the late 1970s.
![Lev Osipovič Al'burt]()
Lev Osipovič Al'burt
August 21, 1945: What famous people died on that day?
Famous people died on August 21, 1945:
![Maurice Eliot]()
Maurice Eliot![Vladimir Aleksandrovič Braun]()
Vladimir Aleksandrovič Braun
August 21, 1945: Number 1 song on that day
The number 1 song on August 21, 1945 is the best selling or most popular song as resulting from the music charts in the week August 20th and August 26th. It changes depending on Countries, Music Genres and methodology used to rank the most popular song (for ex., sales, streaming).
August 21, 1945: What was the number 1 song in the USA on that day?
The number 1 song in the USA on August 21, 1945 was Hong Kong Blues by Hoagy Carmichael, according to the music chart for the week August 20th and August 26th.
- Hoagy Carmichael - Hong Kong Blues
- Ella Fitzgerald & Delta Rhythm Boys - It's Only a Paper Moon
- Perry Como - (Did You Ever Get) That Feeling in the Moonlight
- Tommy Tucker & His Orchestra - On The Atcheson, Topeka, and the Santa Fe
August 21, 1945: What is The Zodiac Sign for that day?
The Zodiac and Astrological sign for August 21st is Leo.
Discover the zodiac sign and horoscope for any day in the past.
Leo is the 5th sign in the Western Zodiac. People born between July 23rd and August 22nd belong to the Leo sign: discover Leo personality and who should a Leo marry.
Babies born in August are either Leo or Virgo. People born before August 22nd are Leo, while people born from August 23rd have the sign of Virgo.
Discover the personality of August born.
Unlock the Mysteries of August 21, 1945! Claim Your Free Numerology Report!
August 21, 1945: What is the Chinese Zodiac Sign for that day?
The Chinese Zodiac sign for August 21, 1945 is Rooster and the associated element is Wood.
Discover the Rooster personality and how the Wood Element might affect a person's traits and compatibility with other signs according to the Chinese zodiac.
Try our calculator to discover your Chinese zodiac sign based on your date of birthAugust 21, 1945: What was the moon phase on that day?
Moon phase
The moon phase on August 21, 1945 was Waxing gibbous.
The moon phase refers to the appearance of the Moon in the night sky on August 21, 1945 and is determined by the portion of the Moon's illuminated surface that is visible from Earth.
An observer located in New York City on August 21, 1945 at 10pm, would see the moon, being 98% full, rising at 06:58 pm and setting at 04:52 am.
The previous full moon was on Jul 25, 1945 while the next full moon would come on Aug 23, 1945.
Unveil Your Inner Self: Discover Your Moon Sign Now!
Your place in the Universe on August 21, 1945
We are proud to bring you the most beautiful and accurate map of the stars on your day
Get your Star Map Now!How old is someone born on August 21, 1945?
Someone born on August 21, 1945 is:
80 years 11 months old,
or 971 months and 16 days old,
or 4224 weeks and 2 days old,
or 29570 days old,
Enjoy a trip down memory lane: discover what the world looked like when you turned 18 years old, 30 years old, 40 years old
Use our How old am I? Calculator to know the age of a person today or use the Age Calculator to determine the interval between two dates.
How many days until your next birthday if you were born on August 21, 1945?
There are 15 days until your next birthday, which will occur on Friday August 21st 2026.
Try out our Countdown calculator to find out are many days are left until your special moments.
What generation do you belong to if you were born on August 21, 1945?
You belong to the Silent Generation if you were born on August 21, 1945.
Discover what generation people belong to with our generation calculator.
Back in 1945
Why 1945 makes a meaningful nostalgia gift
For someone born on August 21, 1945, a 1945 nostalgia poster turns a familiar date into a visual account of the world they arrived in.
The history attached to August 21, 1945 includes Fatal criticality accident at Los Alamos, giving the gift a real story rather than a generic year label.
The soundtrack around August 21, 1945 included “Hong Kong Blues” by Hoagy Carmichael, a memory that helps place the recipient back in their era.
Cinema from the world of August 21, 1945 included The Lost Weekend, adding another recognizable cultural touchpoint to the year.
August 21, 1945 is also shared with notable birthdays such as Patty McCormack, making the date feel connected to a wider story.
Together, those details make August 21, 1945 more than an answer to a history question: they provide the personal starting point for a gift rooted in the recipient's own date.
Because the poster is delivered digitally and personalized around 1945, it can become a birthday surprise, milestone keepsake, or printable reminder of the era connected to August 21, 1945.
The 1945 poster brings together verified books, songs, and movies, creating a personal digital keepsake for birthdays and milestone celebrations tied to August 21, 1945.
Explore the fuller story in our 1945 history guide, or see the 1945 poster gift page. You can also compare ideas in our birth-year poster guide.
Make 1945 part of their celebration
A personalized digital nostalgia gift, ready to order for someone connected to August 21, 1945.
