The seal of New York City, adopted in an earlier form in 1686, bears the legend "SIGILLVM CIVITATIS NOVI EBORACI", which means simply "The Seal of the City of New York". "Eboracum" was the Roman name for York, the titular seat of James II as Duke of York. The two supporters represent the unity between Native Americans and colonists, the four windmill sails recall the city's Dutch history as New Amsterdam, and the beavers and flour barrels the city's earliest trade goods (see History of New York City). The crest over the seal is the American eagle, added after the American Revolution. "1625", the date at the bottom, was chosen to emphasize the city's Dutch roots but has been characterized as "arbitrary" and "simply wrong" by notable city historians (New Amsterdam was actually settled in 1624).