About November 21, 1905

November 21, 1905 is the 325th day of the year 1905 in the Gregorian calendar. There are 40 days remaining until the end of this year. The day of the week is Tuesday.

You can browse the full year 1905 calendar in case you need it.

A person born on this day will be 118 years old today. (Assuming this person is still alive and kicking)

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Scorpio is the sun sign of a person born on this day. Topaz is the modern birthstone for this month. Pearl is the mystical birthstone from Tibetan origin that dates back over a thousand years.

Snake is the mythical animal and Wood is the element for a person born on this day if we consider the very old art of Chinese astrology (or Chinese zodiac).

What Happened On November 21, 1905

  • 1905
    Albert Einstein’s paper, Does the Inertia of a Body Depend Upon Its Energy Content?, is published in the journal “Annalen der Physik”. This paper reveals the relationship between energy and mass. This leads to the mass–energy equivalence formula E = mc².

Uh-oh! This is embarrassing. My apologies, it seems like I know very little about this day. Gotta research some more.

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