I think LMS members and all readers of this blog will be happy and surprised that thousands of people voted Alan Turing’s Universal Machine, described in his 1936 mathematical logic paper, the most important innovation of the last 100 years:

http://www.topbritishinnovations.org

Of course, many of them will have voted 🙂

Btw, don’t you think it’s amazing (and says something about the way basic research impacts on the world) that a 1930s mathematical logic paper in the “*Proceedings of the London Mathematical Society*” eventually wins a popular vote for “the most important innovation of the last 100 years” some 76 years later?