1897-05-17 The first successful submarine that can run submerged for any considerable distance and combines electric and gasoline engines is launched in the USA by its designer John Philip Holland
1898-03-17 John Philip Holland achieves successful test run for the first modern submarine off Staten Island, submerging for 1 hour 40 minutes
1900-04-11 The first modern submarine designed and built by John Philip Holland is purchased by the U.S. Navy
1900-10-12 The first modern submarine is commissioned by the U.S. Navy as the USS Holland, named for its designer John Philip Holland