I had to watch it again to catch the “Henry” error but the reference to colony vs state is being a bit too picky IMHO.. Any sunstantial errors that you know of?
Also, Francis Scott Key did not write a song - he wrote a poem, “The Defense of Fort McHenry.” It was put to music later to an existing tune, “To Anacreon in Heaven,” often referred to as a British drinking song.
Key was not there on a government mission for prisoner exchange. He was there for a friend that had been arrested but he did get Pres. Madison's approval first.
Those were errors in just the introduction....