Today In History logo TIH
Einstein published his general theory of relativity in 1916, overturning Newtoni
Featured Event 1905 Event

September 27

Einstein Unveils E=mc2: Physics Rewritten Forever

Einstein published his general theory of relativity in 1916, overturning Newtonian gravity and redefining how we understand space, time, and the cosmos. This breakthrough allowed him to model the large-scale structure of the universe just a year later, fundamentally shifting physics from static mechanics to a dynamic, curved spacetime.

September 27, 1905

121 years ago

Key Figures & Places

What Else Happened on September 27

Talk to History

Have a conversation with historical figures who witnessed this era. Ask questions, explore perspectives, and bring history to life.

Start Talking