United States territorial acquisitions
The Panama Canal Zone was an unorganized US territory located within the Republic of Panama. It was established under the Hay–Bunau-Varilla Treaty in 1903 and disestablished in 1979 under the Torrijos–Carter Treaties. Panama gained full control over the Panama Canal in 1999.
George Washington Goethals
The United States took control of the French property—after the bankruptcy of the French "Compagnie Universelle du Canal Interocéanique de Panama" that started constructions on The Panama Canal under Ferdinand de Lesseps— on May 4, 1904. The new Panama Canal Zone Control was overseen by the Isthmian Canal Commission (ICC) during construction.