dec 7, 1677 - Father Louis Hennepin of Belgium, exploring North America, becomes the earliest known European person to discover Niagara Falls, and the first to report its existence. In his book A New Discovery of a Vast Country in America, published in 1698, Hennepin writes "Betwixt the lakes Ontario and Eire there is a vast prodigious Cadence of water which falls down after a surprising and astonishing manner, inasmuch that the Universe does not afford its parallel (Timeline)