Other Gettysburgh address.

Cliff Pickover (@pickover) tweetou às 3:08 AM on dom, Jun 09, 2013: The mathematical writings of President Abe Lincoln. http://t.co/ly660MIePf (thanks ‏@MathUpdate) (https://twitter.com/pickover/status/343550019858751490) Adquira o aplicativo oficial do Twitter em https://twitter.com/download