The province is named after former king Norodom Sihanouk and the city of Sihanoukville grew up around the construction of the Sihanoukville Port, which began in June 1955.
The province is named after former king Norodom Sihanouk. The city of Sihanoukville grew up around the construction of the Sihanoukville Port. The Sihanoukville Port began in June 1955.