Then in 1609, Henry Hudson, an English explorer working for the Dutch, came and claimed the land for the Dutch. The colony there grew and farms began to expand, so the demand for workers increased. The Dutch West Indies Company decided to import slaves in 1625 to the new colony. The Civic Center was known as the commons and the first recorded building was a windmill built by Jan de Wit and Denys Hartogveldt in 1663. The next year, the colony was renamed New York and the state seal was created the following year. Farms continued to grow and slavery expanded rapidly. The slaves built a burial ground in the north area of the Civic Center. The slaves would bury people at night even though it was illegal, to ensure their brethren had a proper burial service. Because of the slaves’ sneaking out and racism, the Trinity Church banned African burial ceremonies in 1697. This rule was then overturned in 1773.