Union Square as it was in the days of old.

Join the Somerville Historic Preservation Commission, ArtsUnion, and Shape Up Somerville on Sunday, September 23, for a free walking tour of historic Union Square. The tour will step off from Bow Market at 345 Somerville Ave. at 2:30 p.m., and conclude at 5 p.m. at Aeronaut Brewing, 14 Tyler St. The tour will be led by Ed Gordon, New England Chapter President of the Victorian Society in America. RSVP is requested due to limited space. For more information and to RSVP, contact Brandon Wilson at BWilson@somervillema.gov, or 617-625-6600, x. 2532.

A rain date has been set for Sunday, September 30.

Individuals with disabilities who need auxiliary aids and services for effective communication, written materials in alternative formats, or reasonable modifications in policies and procedures, in order to access the programs and activities of the City of Somerville or to attend meetings, should contact the City’s ADA Coordinator, Nency Salamoun, at 617-625-6600 x2323 orNSalamoun@somervillema.gov.