How did six critical days shape Francis G. Slay's impact on St. Louis? In this series, St. Louis Public Radio takes a deep dive into the political career of St. Louis’ longest serving mayor. From his first day in office in 2001, to the state takeover of city schools in 2007 and the marriage of four same-sex couples at City Hall in 2014, The Millennium Mayor breaks down how St. Louis has changed under Francis Slay’s leadership.