New York City Seal Incorrectly Dated?

The New York Times provides the enlightening story of how the city seal of New York City reports an "semi-arbitrary" date of 1625 as the city's founding. Unfortunately, nothing really happened in the city's history during that year to use it as a notable date in history. According to the article, "The first settlers arrived in what would become part of New York City on a Dutch ship as early as 1623; some say 1624. The Dutch 'purchased' Manhattan in 1626. The first charter was granted in 1653."