Paeonian Springs Throws 100th Anniversary Bash

Paeonian Springs village will celebrate its 100th anniversary from 1 to 4 p.m. Saturday. Events include a display of village memorabilia, equipment from the American Work Horse Museum, arts and crafts, contests, country dancing and children's games. Admission is $2 per carload. The village is along Route 9 north, about a mile from Clarks Gap. Call 338-6290. Sterling Family Picnic

The Sterling Community Center and Sterling Annex will sponsor a family picnic at the community center's park from 3 to 6 p.m. Sunday. The day includes games, music, food and clowns. Admission is free. Call 430-6673. Pony Show in Middleburg

The fifth annual American Connemara Pony Show will take place this weekend at Glenwood Park in Middleburg. The show is open from noon to 4 p.m. Saturday and 9 a.m. to 4 p.m. Sunday. Admission is free. Call 687-6485, 554-8139 or 777-5080. Battlefield Historian to Speak

Edmund J. Raus Jr., chief historian at the Manassas National Battlefield Park, will be guest speaker at Tuesday's meeting of the Loudoun County Civil War Round Table. The meeting will begin at 7:30 p.m. at Holy Trinity Lutheran Church, 605 W. Market St., Leesburg, and the public is invited. Admission is free. Call 771-1110. YMCA Day Camp Registration

The YMCA of Loudoun County is accepting registration for its three summer day camps, which begin June 18. Camp sites are in Leesburg at Festival Lakes Park and Loudoun House apartments and in Sterling at Algonkian Regional Park. Each site offers different programs for children of various ages and interests. Call 777-9622 for more information and to register. Weekend Crafts Fair

Market Station will host a crafts fair from 10 a.m. to 5 p.m. Saturday and noon to 5 p.m. Sunday. Admission is free. Call 777-6367. Upperville Horse Show

The Upperville Colt and Horse Show continues through this weekend at Grafton Farm on Route 50 between Middleburg and Upperville. The show's highlight will be the Michelob Upperville Jumper Classic at 2:30 p.m. Sunday. There are also events today and Saturday. The show opens at 8 a.m. each day and continues until dusk. Admission is $3 during the week and $5 on weekends. Admission is free for children younger than 12. Call 592-3858. Take a Hike at Sky Meadows

Several events are planned this weekend at Sky Meadows State Park: a morning hike from 10 a.m. to noon Saturday; an evening walk from 8 to 9 p.m. Saturday and a reptile display and seminar from 2 to 3:30 p.m. Sunday. All events are free but there is a $1.50 parking fee on weekends. Call 592-3556. Running for a Cause

The Countryside Commercial and Professional Center, Loudoun Healthcare Foundation, Arundel Publications and the Junior Women's Club of Loudoun will sponsor 10-mile and five-kilometer races Saturday to benefit Jackie Lindsay, a 2-year-old from Lovettsville who has leukemia. The event, which also includes a 440-meter run, begins at 8 a.m. at Loudoun Valley High School in Purcellville. Call 338-2708.

The Loudoun Chapter Outreach Committee of the Northern Virginia Building Industry Association will also sponsor a race this weekend, this one to benefit the Loudoun County shelter for the homeless. The race will be a 10-kilometer run through Leesburg's historic district and along the Washington and Old Dominion Trail. It begins at 8 a.m. Sunday. Call 777-1262.