Maine State Historian Earle G. Shettleworth Jr. discusses midcentury modern residential, religious and civic architecture in a lecture titled “When Modernism Came to Maine” at 2:30 p.m. Oct. 15 at Holy Cross Church, 124 Cottage Road, in South Portland.

The talk is sponsored by Greater Portland Landmarks and will be followed by a reception at South Portland Public Library across the street. The reception will include tours of the library, which was built in 1967.

Advanced registration is requested at portlandlandmarks.org. The cost is $15, $12 for members.