Late last week, New York Magazine’s Sam Jewler and I exchanged a few e-mails about the history of the Second Ave. Subway. What emerged was this very thorough timeline designed to complement the timeline on my site. As you can see, it is a rather dubious timeline, filled with stops and starts. When the Second Ave. Subway was first announced in 1929, it was due for a completion between 1938 and 1941. Here we are, 80 years later, still waiting for a subway whose completion date keeps drifting further and further into the future.