On Wednesday, July 12, the Farnsworth Art Museum will be marking the centennial of the late Andrew Wyeth’s birth with a full slate of activities throughout the downtown museum. The celebration will begin at 10 a.m., and will include film and music; search-and-find activities for kids; a special one-day-only pictorial postmark stamp canceling event for the USPS’s new Andrew Wyeth stamps; the annual Wyeth Day lecture; a book signing; and as a celebratory reception in the museum’s Victorian garden.

Wyeth was born on July 12, 1917. The Farnsworth is currently showcasing his Maine works through four exhibitions. In celebration of his birthday, the Farnsworth is planning a series of activities and events both at the Strand Theatre and throughout the museum campus, as follows.

From 1 to 4 p.m., museum attendees can get an official date-of-issuance USPS Andrew Wyeth Stamp Pictorial Postmark. To mark the centennial, the post office is issuing a series of 12 stamps that each features a detail of a different Wyeth painting. The issuance includes a work from the Farnsworth’s own collection, “Alvaro and Christina,” which is currently on view in the museum’s Wyeth Center. The event is free with museum admission.

From 2 to 3 p.m., the annual Wyeth Day Lecture at the Strand Theatre, 345 Main St., will focus on Henry David Thoreau’s connection to the Wyeth family of artists. Titled “Heaven Is Under Our Feet as well as Over Our Heads,” the lecture will be delivered by Elliot Bostwick Davis, the John Moors Cabot Chair of the Art of the Americas Department at the Museum of Fine Arts, Boston. Tickets are $10, $8 for Farnsworth members, and may be purchased in advance at farnsworthmuseum.org.

From 3 to 5 p.m., Christina Baker Kline, author of the bestselling novels “A Piece of the World” and “Orphan Train,” will be in the museum library to sign copies of her new book, which was inspired by Wyeth’s iconic painting “Christina’s World.” Copies of “A Piece of the World” may be purchased in the museum store. The event is free with museum admission.

Also from 3 to 5 p.m., the Farnsworth invites the public to join in a celebratory cupcake in honor of the great painter’s birthday in the Homestead's Victorian Garden. Prosecco as well as non-alcoholic beverages, will be served. This event is free to the public.

At 4 p.m., there will be a flute recital in the Hadlock Gallery. Katsushige Susaki, who, with her husband, is a lender to the exhibition “Andrew Wyeth: Maine Watercolors, 1938 – 2008,” will celebrate Wyeth’s birthday with a short, five-minute performance. The event is free with museum admission.

Throughout the day, Farnsworth docents will be on hand to answer Wyeth-related questions in the museum’s galleries; the documentary film “Andrew Wyeth Self-Portrait: Snow Hill” will be show throughout the day in the museum’s auditorium.

The Wyeth Day celebration is free with museum admission, and the public toast is free to all — as is admission to the museum, including the Wyeth Center, from 5 to 8 p.m. For more information, or to register for any of these events, visit farnsworthmuseum.org.

Courier Publications’ A&E Editor Dagney C. Ernest can be reached at (207) 594-4401, ext. 115; or dernest@courierpublicationsllc.com.