Lecture: “Why World Peace Is Possible,” Paul K. Chappell, West Point graduate, Iraq War veteran and international peace leader, Unity of Greater Portland, 54 River Road, Windham, 10 a.m. to 2:15 p.m. Sunday.

Lenten Series III. This week’s hourlong forum: “Thoreau’s Social Protests,” will be led by Ed Mooney, Ph.D., Free, State Street Church, 159 State St., Portland, 11:30 a.m. to 12:30 p.m. Sunday.

“The Art of Icon Painting” with Russian icon maker, teacher and lecturer Marina Forbes. Open house Sunday at Grace Christian Academy, 187 Lewiston Road, West Gardiner, 6 to 8 p.m.

Coffee House featuring Chris Kemp White, Falmouth Congregational Church, 267 Falmouth Road, 6:30 to 9 p.m. Friday.

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