jan 1, 1905 - Albert Einstein's relativity theory
Description:
1. E = mc^2According to relativity theory, space and time are not absolute but relative to the observer, and both are interwoven into what Einstein called a four-dimensional space-time continuum. Neither space nor time had an existence independent of human experience.
Added to timeline:
Date:
jan 1, 1905
Now
~ 120 years ago