New York has a shorter history, only more than 300 years. The earliest settlement was at the southern end of Manhattan Island, which was originally the residence of Indians. The Italian Frazzano first came to the river mouth area in 1524. In 1609, the Englishman Hudson explored up the river, and the river was named after him. In 1626, the Dutch bought Manhattan Island from the Indians for small items worth about 60 guilders (equivalent to 24 US dollars) and established it as a trading post, calling it "New Amsterdam". In 1664, the Duke of York, the younger brother of King Charles II, occupied this area and renamed it New York (New York, Yorkshire in the UK). New York was founded in 1686. During the Revolutionary War, New York was the headquarters of George Washington and the place where he became the first president of the United States. It was also the temporary capital of the United States at that time. In 1825, the Erie Canal connecting the Hudson River and the Great Lakes region was completed and opened to navigation. Later, railways were built, connecting New York with the Midwest and promoting the city's development. By the mid-19th century, New York gradually became the largest port city in the United States and an international metropolis integrating finance, trade, tourism, culture and art.