Pennsylvania

The coat of arms of Pennsylvania is, unsurprisingly, central to their flag. The ship represents commerce, the wheat agricultural fertility, and the plough rich natural resources. An olive branch and cornstalk symbolise peace and prosperity. The eagle on top suggests the states absolute loyalty to the Union.

FUN FACT: Although authorised in 1799, it wasn’t until 1907 that the flag was standardised, requiring the blue field match the blue of “Old Glory”.