Birth chart on this day
Discover the planets positions on May 21st, 1946 as well as what the sky looked like at your place
see horoscope and birth chart for May 21, 1946What happened on Tuesday, May 21, 1946?
About May 21st, 1946, in brief:
- Historical events: On May 21, 1946, physicist Louis Slotin was involved in a criticality accident while conducting an experiment with the Demon Core, a subcritical mass of plutonium. The incident resulted in a fatal dose of radiation for Slotin, highlighting the dangers of handling nuclear materials. This event is a significant moment in the history of nuclear safety.
- Day of the week: May 21st, 1946 was a Tuesday
- Zodiac Sign: Gemini (in western zodiac), Dog (in Chinese zodiac)
- Moon Phase: Waning gibbous
- #1 US song: Hey! Ba-Ba-Re-Bop by Tex Beneke & The Glenn Miller Orchestra
- Popular movie: The Best Years of Our Lives directed by William Wyler
More about May 21st, 1946? See below for more news and curiosities on May 21st, 1946.
A meaningful gift for someone born on May 21, 1946
Give them the year they were born
The personalized 1946 nostalgia year poster is a beautifully researched snapshot of the books, songs and movies that shaped 1946.
- Best-selling books from 1946
- Popular songs from 1946
- Popular movies from 1946
$9.90 · Personalized digital poster delivered instantly by email
Create a 1946 year posterWant the exact date instead? Create a May 21, 1946 poster
See our satisfaction and refund policy.
Real poster exampleTable of contents
- May 21, 1946: What happened on that day?
- What day of the week was May 21, 1946?
- Who was born on May 21, 1946?
- May 21, 1946: What famous people died on that day?
- May 21, 1946: Number 1 song on that day
- May 21, 1946: What is The Zodiac Sign for that day?
- May 21, 1946: What was the moon phase on that day?
- How old is someone born on May 21, 1946?
- Back in 1946
May 21, 1946: What happened on that day?
Here's what happened on May 21, 1946:
- Fatal Criticality Incident: Louis Slotin and the Demon Core On May 21, 1946, physicist Louis Slotin was involved in a criticality accident while conducting an experiment with the Demon Core, a subcritical mass of plutonium. The incident resulted in a fatal dose of radiation for Slotin, highlighting the dangers of handling nuclear materials. This event is a significant moment in the history of nuclear safety. source: nrc.gov
May 21, 1946: What were the magazines covers and newspapers that day?
Look at our old newspapers and magazines page
What day of the week was May 21, 1946?
May 21, 1946 was a Tuesday and it was the 141st day of the year 1946 in the Gregorian calendar.
May 21, 1946 can also be written as 5/21/1946 in the US and as 21/5/1946 in UK and Europe.
Who was born on May 21, 1946?
Famous people born on May 21, 1946:
![Wayne Roycroft]()
Wayne RoycroftRenowned Australian equestrian who competed and coached at international levels, known for significant contributions to equestrian sports.
May 21, 1946: What famous people died on that day?
May 21, 1946: Number 1 song on that day
The number 1 song on May 21, 1946 is the best selling or most popular song as resulting from the music charts in the week May 20th and May 26th. It changes depending on Countries, Music Genres and methodology used to rank the most popular song (for ex., sales, streaming).
May 21, 1946: What was the number 1 song in the USA on that day?
The number 1 song in the USA on May 21, 1946 was Hey! Ba-Ba-Re-Bop by Tex Beneke & The Glenn Miller Orchestra, according to the music chart for the week May 20th and May 26th.
- Tex Beneke & The Glenn Miller Orchestra - Hey! Ba-Ba-Re-Bop
- Peggy Lee - I Don't Know Enough About You
May 21, 1946: What is The Zodiac Sign for that day?
The Zodiac and Astrological sign for May 21st is Gemini.
Discover the zodiac sign and horoscope for any day in the past.
Gemini is the 3rd sign in the Western Zodiac. People born between May 21st and June 20th belong to the Gemini sign: discover Gemini personality and who should a Gemini marry.
Babies born in May are either Taurus or Gemini. People born before May 20th are Taurus, while people born from May 21st have the sign of Gemini.
Discover the personality of May born.
Unlock the Mysteries of May 21, 1946! Claim Your Free Numerology Report!
May 21, 1946: What is the Chinese Zodiac Sign for that day?
The Chinese Zodiac sign for May 21, 1946 is Dog and the associated element is Fire.
Discover the Dog personality and how the Fire 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 birthMay 21, 1946: What was the moon phase on that day?
Moon phase
The moon phase on May 21, 1946 was Waning gibbous.
The moon phase refers to the appearance of the Moon in the night sky on May 21, 1946 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 May 21, 1946 at 10pm, would see the moon, being 65% full, rising at 12:23 am and setting at 10:44 am.
The previous full moon was on May 16, 1946 while the next full moon would come on Jun 14, 1946.
Unveil Your Inner Self: Discover Your Moon Sign Now!
Your place in the Universe on May 21, 1946
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 May 21, 1946?
Someone born on May 21, 1946 is:
80 years 2 months old,
or 962 months and 21 days old,
or 4186 weeks
or 29302 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 May 21, 1946?
There are 283 days until your next birthday, which will occur on Friday May 21st 2027.
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 May 21, 1946?
You belong to the Baby Boomer Generation if you were born on May 21, 1946.
Discover what generation people belong to with our generation calculator.
Back in 1946
Why 1946 makes a meaningful nostalgia gift
For someone born on May 21, 1946, a 1946 nostalgia poster turns a familiar date into a visual account of the world they arrived in.
The history attached to May 21, 1946 includes Fatal Criticality Incident: Louis Slotin and the Demon Core, giving the gift a real story rather than a generic year label.
The soundtrack around May 21, 1946 included “Hey! Ba-Ba-Re-Bop” by Tex Beneke & The Glenn Miller Orchestra, a memory that helps place the recipient back in their era.
Cinema from the world of May 21, 1946 included The Best Years of Our Lives, adding another recognizable cultural touchpoint to the year.
May 21, 1946 is also shared with notable birthdays such as Wayne Roycroft, making the date feel connected to a wider story.
Together, those details make May 21, 1946 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 1946, it can become a birthday surprise, milestone keepsake, or printable reminder of the era connected to May 21, 1946.
The 1946 poster brings together verified books, songs, and movies, creating a personal digital keepsake for birthdays and milestone celebrations tied to May 21, 1946.
Explore the fuller story in our 1946 history guide, or see the 1946 poster gift page. You can also compare ideas in our birth-year poster guide.
Make 1946 part of their celebration
A personalized digital nostalgia gift, ready to order for someone connected to May 21, 1946.
