Einstein Publishes E=mc2: Mass-Energy Equivalence
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
Odoacer had already lost to Theodoric once, at the Isonzo River. Then again at Milan. Now Verona. He kept losing battles but wouldn't surrender — retreating eac…
وصول الرسول محمد إلى المدينة المنورة من مكة في ما عُرف بالهجرة النبوية.
William the Conqueror and his army set sail from the mouth of the River Somme to launch the Norman conquest of England. This invasion toppled the Anglo-Saxon mo…
signature de la charte de Kortenberg.
Der Hochchor des Kölner Domes wird geweiht
Polish forces under Władysław I the Elbow-high ambushed a retreating Teutonic Order column near Płowce, capturing high-ranking commanders and inflicting heavy c…
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