Princeton’s celebration of Alan Turing *38 kicks off this month with an exhibition in the Firestone Library lobby featuring Turing’s Princeton dissertation and ­graduate file. 

On April 23, Andrew Hodges, mathematics fellow at Wadham College, Oxford University, and author of Alan Turing: The Enigma, will deliver the Louis Clark Vanuxem Lecture at 8 p.m. in McCosh 50. 

A three-day conference on Turing’s ­contributions takes place May 10–12, with computer scientists and mathematicians from around the world ­coming together to give general-interest talks and technical sessions. For information, visit