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A. Einstein, Die Grundlage der allgemeinen Relativitaetstheorie, Annalen der Physik 49 (1916), 769-822. This is Einstein's 1916 General Relativity paper. A strong contender from the man who had the whole year to himself in 2005. (I did a post about some of this work's development here.) Make one comment, which will be your vote. (Any other comments from you on this thread will be deleted.) Feel free to tell the world what this paper means to you.... and why you voted for it over the others..... Or you can just make a comment that registers your vote, making whatever noise you want! Voting ends 9:00pm, Jan 16th Pacific Standard Time. -cvj