“Become a Young Aviator”. Registration is now open for the annual Summer STEM Aviation Classes for kids. Classes are from 8:30 a.m. to 12:00 p.m. until Friday August 23 at at the Empire State Aerosciences Museum, 250 Rudy Chase Drive in Glenville, NY.

Benedict Arnold and the Letter That Changed History Lecture. The letter was written by Nathaniel Bacheller, a militia adjutant from New Hampshire, to his wife, Suzanna, on Oct. 9, 1777. $5 for adults and free for students and members. 1:00 p.m. at the Old Stone Fort 145 Fort Road Schoharie, NY.

Hilltowns Alive Presents: Rensselaerville Ride | Ride the Five! Cost: $20/$25; Family Ride, Road Safety Lecture are free. Donations welcome. Rider sign in begins at 9:00 a.m. Event Kick-off with NYBC at 10:00 a.m. Rides leave at 10:30 and 11:00 a.m. Begin and end at Helderberg Brewery Taproom, 26 County Route 353, Rensselaerville, NY 

“Fly-in Breakfast” at Empire State Aerosciences Museum. Monthly all you can eat breakfast with surprise guest speaker. From 8:30 to 10:30 a.m. at ESAM 250 Rudy Chase Dr, Glenville, NY

Footsteps of Hamilton. Join us as we celebrate the opening of Hamilton at Proctors with a walk through Schenectady dedicated to the travels of Alexander Hamilton, and some of his contemporaries. Registration is $10 and free for members. Event is at 10:00 a.m. at Schenectady County Historical Society, 32 Washington Ave Schenectady, NY 12305

Hike to Hang Glider Cliff at Thacher Park. Take a guided hike to the escarpment in the north zone of the park and learn about the interesting geology of the landscape along the way. Call 518-872-0800 to register. Meet at the Carrick Road parking area, 6:00 p.m. At Thacher Park,87 Nature Center Way, Voorheesville, NY. Meet at the Carrick Road parking area.

Family Nature Journaling. Come spend part of your day with us as we draw inspiration from nature and pause to observe life in the Pine Bush. Reservations required by calling 518-456-0655 or visitwww.AlbanyPineBush.org/events. Starts at 10:00 a.m. at Albany Pine Bush Discovery Center, 195 New Karner Road, Albany, NY

Women in Business Meeting. Interested in networking with other women in a variety of business fields? Join us for an opportunity to learn and discuss topics of importance to all women who work! From 5:30 to 7:00 p.m. at Skyloft at Crossgates, 1 Crossgates Mall Rd Albany, NY 12203

Ferragosto Celebration. An Italian holiday originally celebrated to mark the middle of the summer and the end of hard labor in the fields. Bring your lunch and a lawn chair.  We will provide refreshments and a couple of bocce ball sets. From 11:30 a.m. to 2:00 p.m. at American Italian Heritage Association and Museum, 1227 Central Avenue, Albany, NY

American Girl Tea. We’ll meet our host, Caroline Abbott, a brave girl from Sacket’s Harbor NY in 1812 as we explore Mabee Farm’s period boats and make a boat-themed craft to take home. Cost is $8 adults and kids. Please register in advance at www.schenectadyhistorical.org/. Event starts at 2:00 p.m. at SCHS Mabee Farm, 1100 Main Street Rotterdam Junction, NY 12150