Events in Westport today -- Thursday, Dec. 20

Muse:" 10 a.m.-4 p.m. Westport Arts Center, 51 Riverside Ave.

"U.S. Postage Stamps by Westport Artists:" 10 a.m.-4 p.m. Westport Historical Society, 25 Avery Place. Exhibit with companion, "The Road to 06880: Colonial Era to Present."

Downtown 2020 Committee: noon Westport Town Hall.

Planning and Zoning Commission: 7 p.m. Town Hall.

Youth Commission: 7:15 p.m. Town Hall.

Princeton Nassoons: 8 p.m. Seabury Center, 45 Church Lane. Performance mixing a capella music and comedy by Princeton student group.