August 4

1351: Sea battle at Zwartewaal: Willem V beats Hoeksen & English.

1666: Sea battle between Netherlands & England.

1704: War of the Spanish Succession: Gibraltar is captured by an English and Dutch fleet, commanded by Admiral Sir George Rooke and allied with Archduke Charles.

1790: US Coast Guard founded as Revenue Cutter Service.

1854: The Hinomaru is established as the official flag to be flown from Japanese ships.

1892: Queen Wilhelmina & Emma open Merwede Canal between Amsterdam and the Rhine.

1902: The Greenwich foot tunnel under the River Thames opens.

1914: German fleet under admiral Souchon fire on Algerian coast.

1943: British premier Winston Churchill travels on the Queen Mary to Canada.

1964: Gulf of Tonkin incident: U.S. destroyers USS Maddox and USS Turner Joy report coming under attack in the Gulf of Tonkin.

1991: The Greek cruise ship MTS Oceanos sinks off the Wild Coast of South Africa.