Investigation Timeline: Why does the North Side have names for streets and the South Side have numbers?

An educator's former commute got him wondering about the city's geography.

July 27, 2012

Curious City is a news-gathering experiment designed to satisfy the public's curiosity. People submit questionsvote for their favorites, and WBEZ reports out the winning questions in real time, on FacebookTwitter and the timeline above.  

This round's winner is Mark Sheldon from Evanston. His question is: "Why does the North Side have names for streets and the South Side have numbers?" We're tracking down answers now, so check back for updates as we go along.