Early European settlement along the Hudson River shoreline occurred around 1628-1629 and in 1669 a fort was built on Papscanee Island. The hamlet of East Greenbush was settled around 1630, with a Dutch Reformed church first built in 1787, and a post office was established in 1845. In the late 18th century until his death in 1834, Prospect Hill on Hays Road in the southern section of the town was home to Edmond-Charles Genêt, former adjutant-general, minister plenipotentiary, and consul-general to the United States representing France; and as an American citizen he was a New York state legislator from Rensselaer County and a major-general in the state militia.