Charlotte Shields-Rossi | a&e editor In four months America will celebrate its 250th anniversary. This week Pittsburgh Ballet Theatre is starting the birthday festivities a little early. “America 250,” a mixed repertoire program, will include four classical and contemporary works of all the things that define the USA — baseball, World War II, stars and stripes. The performance begins with an ode to the country’s … Continue reading Pittsburgh Ballet Theatre’s “America 250”