This photo includes councilmembers John Ray, Arrington Dixon, David Clarke, Hilda Mason, William Spaulding, H.R. Crawford, and Betty Ann Kane. With that information and Keith Ivey's timeline, you can figure out a 2-year period when this picture must have been taken. Image by DC Council historical archive.

Who was on the DC council when you were born (if you were born after 1975, when it first came into being)? How many people have represented your ward (if you live in DC) over time?

You can learn all that and much more with a new interactive timeline from Keith Ivey. It lists everyone who's served on the council and why they left. Scroll around, mouse over the blocks for more, or click for a full screen version.

My modest contribution to this genre, by the way, is this graph of councilmembers over time whose names correspond to colors:

Image by the author.

David Alpert is Founder and President of Greater Greater Washington and Executive Director of DC Sustainable Transportation (DCST). He worked as a Product Manager for Google for six years and has lived in the Boston, San Francisco, and New York metro areas in addition to Washington, DC. He lives with his wife and two children in Dupont Circle. Unless otherwise noted, opinions in his GGWash posts are his and not the official views of GGWash or DCST.