A few weeks ago, I returned to the classroom of Dennis Dalton, the most important college professor of my life. From the back of an amphitheater seating several hundred students, I realized how much things had evolved at Columbia and Barnard. The lecture hall was now equipped with a wireless sound system, webcams, video projectors, wireless internet. Students were using computers to record the lecture and to take notes. Heads were buried in screens, the tap tap of hundreds of keyboards like rain on the roof.
On this afternoon, April 16, 2008, Dalton was describing the satyagraha of Mahatma Gandhi, building the discussion around the Amritsar massacre in 1919, when British colonial soldiers opened fire on 10,000 unarmed Indian men, women and children trapped in Jallianwala Bagh Garden.