How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Michael Your Own Question

Michael, Librarian
Category: General
Satisfied Customers: 2466
Experience:  20+ years as information professional
Type Your Question Here...
Michael is online now
A new question is answered every 9 seconds

Im trying to find the EXACT DATE

This answer was rated:

I'm trying to find the EXACT DATE when Albert Einstein published his theory of relativity and when his famous equation e=mc2 was published, and also a short summary (a couple sentences) of the importance of these two items. ***NOTE***: I have researched all the obvious sources like, wikipedia,, and every common online source. The problem is there are many conflicting dates out there. ------ What I want from you is DEFINITIVE, AUTHORITATIVE 100% certainty of the exact date of when he published these two things -- and also a couple lines summarizing the important of these two items (such as, "it was a pillar of modern physics.") Nothing too in-depth, just a precise summary & dates. Thank you.

Went ahead and researched from very authoritative sites that you should also be able to find information to summarize each topic.
From the official website of the Nobel Prize:
1916 he published his paper on the general theory of relativity.
From the encyclopedia Britannica website:
On Sept. 27, 1905, Albert Einstein‘s paper “Does the Inertia of a Body Depend Upon Its Energy Content?” was published. It was the last of four papers he submitted that year to the journal Annalen der Physik. The first explained the photoelectric effect, the second offered experimental proof of the existence of atoms, and the third introduced the theory of special relativity. The last and final paper of the series introduced m = E/c2, which was later streamlined to its now instantly recognizable form.
Customer: replied 3 years ago.
Ehhh a bit disappointed that you're making me work. If u want to try again and give me what I asked for, that would be nice.
For exact years of publication:
1916 he published his paper on the general theory of relativity.
1905 for E=MC2
Einstein's theory of relativity is famous, but it's little understood. Basically, the theory of relativity refers to two different elements of the same theory: general relativity and special relativity.
Einstein's theory of special relativity is defined as localized behavior of objects in inertial frames of reference, generally only relevant at speeds very near the speed of light.
Einstein's theory of general relativity can be defined as the more comprehensive theory, which treats gravity as a geometric phenomenon of a curved coordinate system, which also includes noninertial (i.e. accelerating) frames of reference.
E=mc2 is Einstein's famous equation about the speed of light. Einstein's E=mc2, which says that mass and energy are the same thing, and you can convert from one to the other using a constant, "c2", a number whose value is equal to the square of the speed of light. Einstein's formulation of what became known as special relativity tore apart the classical view of the clockwork universe that Newton and his colleagues had developed in the 18th and 19th centuries.
Customer: replied 3 years ago.
Appreciate your effort but you are ignoring my request. I asked for the exact date, not just the year, and a short 1-2 sentence summary of the significance of each item. If u can't do this, I understand, no hard feelings.
The exact date is something that I have not been able to locate from reliable sources. The ones you listed earlier are not ones to use as their fact finding can be off. Especially if you are writing a paper and your references are not one a teacher will find as factually correct.
As for e=mc2, closest I have come across is mentioned here by a book review that lists printing in Sept 1905:
As for theory of relativity, December of 2016 is about as close as I can confirm:
Already gave you a good overview of what each theory is about so hope you can use each.
I will opted out so another expert can offer additional help as needed.
Librarian Michael
Customer: replied 3 years ago.
Too bad - I wanted to give you a positive rating for your efforts.
Let's hope another expert can assist you with your request. Again, from all of my research it seems that there is not an exact date of publication.
Good luck with your assignment.
Librarian Michael
Michael, Librarian
Category: General
Satisfied Customers: 2466
Experience: 20+ years as information professional
Michael and 65 other General Specialists are ready to help you

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Previous | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX

Meet The Experts:

  • Dr. Y.

    Dr. Y.


    Satisfied Customers:

    I am fellowship trained specializing in general urology and reconstructive urology.
< Last | Next >
  • Dr. Y.'s Avatar

    Dr. Y.


    Satisfied Customers:

    I am fellowship trained specializing in general urology and reconstructive urology.
  • John's Avatar


    Home Appliance Technician

    Satisfied Customers:

    Appliance repair business owner for over 43 years.
  • Tina's Avatar



    Satisfied Customers:

    JD, BBA Over 25 years legal and business experience.
  • GM Tech (Cam)'s Avatar

    GM Tech (Cam)

    GMC Mechanic

    Satisfied Customers:

    GM Grand Master Technician 2007. 14 years experience.
  • dermdoc19's Avatar



    Satisfied Customers:

    30 years practice in general and cosmetic dermatology
  • Dr. Gary's Avatar

    Dr. Gary

    Cat Veterinarian

    Satisfied Customers:

    DVM, Emergency Veterinarian, BS (Physiology)
  • Dr. Pat's Avatar

    Dr. Pat

    Bird Veterinarian

    Satisfied Customers:

    25+ years working primarily or exclusively with birds