Staff at the Fort Gibson Historic Site will host four musket-cleaning demonstrations on Friday, June 9, and Saturday, June 10. The class will be held from 10 a.m. to noon, and again from 1 to 3 p.m. on both days. These demonstrations will show visitors the behind-the-scenes work of musket maintenance done by staff members before and after historical programs at the site. Muskets are muzzle-loaded long guns that evolved in 16th-century Spain. Rifles eventually replaced them. The musket cleaning…