Original Einstein Manuscript Discovered

vinlud writes "The original manuscript of a paper Albert Einstein published in 1925 has been found in the archives of Leiden University's Lorentz Institute for Theoretical Physics. The German-language manuscript is titled "Quantum theory of the monatomic ideal gas," and is dated December 1924. It is considered one of Einstein's last great breakthroughs. High-resolution photographs of the 16-page manuscript are posted on the institute's web site."