Topic summary
Second superstring revolution
Extracted from the Wikipedia article History of string theory.
1994–2003: Second superstring revolution
In the early 1990s, Edward Witten and others found strong evidence that the different superstring theories were different limits of an 11-dimensional theory that became known as M-theory (for details, see Introduction to M-theory). These discoveries sparked the second superstring revolution that took place approximately between 1994 and 1995.