It's Darwin Day, 2013, and readers around the world can digitally peruse scientific manuscripts Charles Darwin wrote, thanks to the Darwin Manuscripts Project at the American Museum of Natural History, directed by David Kohn. 

What better way to celebrate Charles Darwin’s 203rd birthday than by reading the famed naturalist’s scientific works in his own handwriting? You can do just that on Sunday, February, 12—also known as “Darwin Day”—and every day after on theDarwin Manuscripts Project website.

Free and available to all online, the Darwin Manuscripts Project is the most comprehensive catalogue of Darwin’s scientific manuscripts ever compiled. The project is based at the American Museum of Natural History and developed in close collaboration with Cambridge University Library, whose physical collection is the foundation of the new database, and the Biodiversity Heritage Library—represented by the Natural History Museum in London. This new tool will also include holdings from all other library—based Darwin collections globally.