May 16-20: AUGUSTA, a tree seedling and used book sale will be held from 9 a.m. to 1 p.m. at Pine Tree State Arboretum, 153 Hospital St. 621-0031

May 17: LEWISTON, the 14th Annual Festival of Arts will be held from 3:30 to 4:45 p.m. at the Hillview Resource Center. 783-8539

May 17-20: SOUTH PARIS, the SAD 17 District Art Show will be held from 8 a.m. to 8 p.m. May 17-19 and 8 a.m. to noon on May 20 at Oxford Hills Comprehensive High School. 743-8914

May 18: AUBURN, the St. Peter and Sacred Heart School Science Fair will be held from 6 to 7:30 p.m. at Sacred Heart Church Hall, Western Avenue. 782-0721

May 18: AUBURN, Robert Chapman, author of “A Certain Fall,” will sign copies of his book at 6:30 p.m. at the Book Burrow and Cafe, 593 Center St. 998-3516

May 18-20: LEWISTON, an Inauguration Celebration for the Saints Peter and Paul Basilica, with concerts, open house, lectures, and the official inauguration liturgy at 5 p.m. on Sunday, will be held. 777-1200

May 18: LISBON FALLS, an open mic and showcase will be held every Wednesday at 7 p.m. at the Lisbon Teen Center Coffee House, 32 Main St. 784-2338

May 18: MEXICO, the Greater Rumford Area Ministers’ Pantry Service will serve a free lunch at noon at the Mexico Town Office.

May 18: OXFORD, author Monica Wood will present a reading and sign copies of her book at Books-N-Things. 743-7197

May 18: WILTON, the Wiltona Women’s Club will hold a game party, with bridge, Uno, Scrabble or your game of choice, at 1 p.m. at the Wilton Congregational Church. $5 645-4166

May 19-20: NORWAY, the annual plant sale will be held from 9 a.m. to 5 p.m. on Thursday and 9 a.m. to 2 p.m. on Friday at the Progress Center, 35 Cottage St. 743-8049

May 20: GREENE, Tommy’s Feral Feline Friends are sponsoring a benefit yard sale from 9 a.m. to 4 p.m. at 284 Lane Road. 782-9776

May 20: HALLOWELL, Moonpie Press poets will read from their poetry and the Improvox Ensemble will perform music at 7:30 p.m. at the Harlow Gallery, 160 Water St. $3 685-3636

May 20: KINGFIELD, an old fashioned benefit car hop will be held from 5 to 8 p.m. at the Kingfield Woodsman, Rt. 27.

May 20: LIVERMORE FALLS, Main Street, USA, 1946, with displays, pre-1947 autos, games, movies, concerts and more, will be held at 4 p.m.

May 20-21: RUMFORD, the American Cancer Society Relay for Life will be held at 4:30 p.m. on Friday until 11 a.m. on Saturday at Hosmer Field Complex. 364-8358

May 21: AUBURN, the annual May Fair will be held from 10 a.m. to 1 p.m. at Lake Street School. 784-1279

May 21: AUGUSTA, a program on rug hooking will be held from 11 a.m. to 3 p.m. at the Maine State Museum. Free 287-2301

May 21: AVON, the annual jumble and bake sale will be held from 9 am. to 3 p.m. at the Avon Community Center. 639-5662

May 21: FARMINGTON, the final free community luncheon of the season will be held from noon to 1 p.m. at Old South First Congregational Church. 639-2013

May 21: GRAY, a program on fly tying and fly casting will be held from 11 a.m. to 2 p.m. at Maine Wildlife Park, Rt. 26. $3.25/$4 657-4977

May 21: HOLLIS, a bake, book and rummage sale will be held from 9 a.m. to 2 p.m. at the Hollis Center Library, corner of Rt. 35 and 202. Rain date is May 22. 929-3911

May 21: LEWISTON, a Strutt Your Mutt dog walk will be held from 9 a.m. to noon at Railroad Park. 786-4713

May 21: LIVERMORE FALLS, an indoor yard, plant and food sale will be held at 8:30 a.m. at the Eaton Memorial United Methodist Church, Church Street.

May 21: MECHANIC FALLS, local author, Robert W. Chapman, will sign copies of his book, “A Certain Fall,” at the book sale from 9 a.m. to noon at the Mechanic Falls Library.

May 21: MECHANIC FALLS, a benefit yard, craft and bake sale will be held from 9 a.m. to 1 p.m. at Tri-Town Head Start. 345-3882

May 21: MECHANIC FALLS, a book, food and plant sale will be held from 9 a.m. to 3 p.m. in the park across from the Mechanic Falls Library.

May 21: OXFORD, Petfest 2005, with vendors, demonstrations, speakers, entertainment, auction and more, will be held from 9 a.m. to 4 p.m. at Oxford County Fairgrounds. 623-4838

May 21: RUMFORD, the Rumford Hospital Auxiliary benefit yard sale will be held from 9 a.m. to 2 p.m. at the former VA Building, Lincoln Avenue. 364-3648

May 21: SKOWHEGAN, a six-mile lawn sale will be held in Skowhegan.

May 21: WILTON, a benefit plant sale will be held from 9 a.m. to noon at St. Luke’s Episcopal Church, High Street.

May 22: LEWISTON, the Inauguration Mass of Thanksgiving at the Basilica of SS. Peter and Paul will be held at 5 p.m., followed by a banquet at the Ramada Inn, Pleasant Street.

May 22: TOPSHAM, the Pony Day Family Festival will be held at Flying Changes Center for Therapeutic Riding. 729-0168

May 22: WELLS, the Fifth Annual Wells Spring Outdoor Antique Show and Sale will be held from 10 a.m. to 4 p.m. at Laudholm Farm, Laudholm Farm Road. $5/$4 1-800-641-6908

May 22: WEST BUXTON, the Pine Tree State Country Music Association Sixth Annual Awards Show will be held at 1 p.m. at The Roost, Chicopee Road. $8/$6 542-3093

May 23: AUGUSTA, the Second Annual Fine Art Auction will beheld from 6 to 8:30 p.m. at the Senator Inn, Western Avenue. $20/$35 623-2722

May 25-30: MT. DESERT ISLAND, Warblers and Wildflowers, with birding walks, garden tours, art, lectures and social events, will be held at Acadia National Park and Mt. Desert Island. 288-5103

May 26: LEWISTON, the Fifth Annual Walk for Wishes will be held at 6 p.m. at the Lewiston Armory, Central Avenue. 236-3171

May 27-30: SEBASCO ESTATES, a Lobsterfest will be held at the Sebasco Harbor Resort, $65$39 1-800-225-3819

May 27-30: SKOWHEGAN, the Maine Quarter Horse Show will be held at the Skowhegan Fairgrounds.

May 27-30: SKOWHEGAN, the Skowhegan Arts and Air Festival, with balloon rides, antique car show, local artists and crafters, air plane exhibits, activities for children and more, will be held at Skowhegan High School. 474-3621

May 27, 28: WILTON, a benefit lawn sale will be held from 9 a.m. to 4 p.m. at the Main Street Garage, Maine Street.

May 28, 29: FREEPORT, the Spring Sports Expo 2005 will be held from 9 a.m. to 5 p.m. at L.L. Bean Flagship Store, Main Street. Free 1-800-559-0747

May 29: LISBON, the annual chicken barbecue or steak will be held from noon to 2 p.m. at the VFW Hall, Rt. 196. $7/$6 353-5291

May 29: OLD ORCHARD BEACH, comics Dave Andrews, Tammy Pooler, Jeremie Remain and more will be featured at 7 p.m. at Galaxy. $5 615-4079

May 29: WINDSOR, the Central Maine Bird Fanciers 19th Annual Spring Poultry Show will beheld from 9 a.m. to 3 p.m. at the Windsor Fairgrounds. 582-6512