jul 12, 1919 - German mathematician Theodor Kaluza
Description:
proposes the addition of a fifth dimension to the General Theory of Relativity, a precursor to much later superstring theory attempts to combine general relativity and quantum theory. The Swedish physicist Oskar Klein independently proposes a similar idea in 1926.Added to timeline:
Date:
jul 12, 1919
Now
~ 107 years ago