Friday, July 14, 1775: Two hundred and fifty years ago today, “General George Washington issued General Orders to the Continental Army, including details on the distribution of ribbons to distinguish ranks and the resolution of a court-martial case. Also, on this day, Virginia's first rifle company began its march to Frederick, Maryland.” (Source: Wikipedia.)
“Washington's General Orders included instructions on the use of ribbons (pink for Majors and Brigadier Generals, green for Aide-de-Camps) to distinguish rank.” (Source: Library of Congress.)

