Cartographic censorship is the deliberate modification of publicly available maps in order to disguise, remove, or obfuscate potentially strategic locations or buildings, such as military bases, power plants or transmitters. Sensitive objects and places have been removed from maps since historic times, sometimes as a disinformation tactic in times of war, and also to serve competitive political and economic interests, such as during the Age of Discovery when strategic geographic information was highly sought after. In modern times requests for censorship are sent to Google Earth for certain sites that are deemed to pose security risks for national governments.
The renowned map historian, J.B. Harley, wrote in 1989:
Throughout the history of modern cartography in the West ... there have been numerous instances of where maps have been falsified, of where they have been censored or kept secret, or of where they have surreptitiously contradicted the rules of their proclaimed scientific status. [1]
The early policy of secrecy proved difficult to enforce and soon maps became subject to censorship and falsification. Cartographic disinformation has long been a weapon in political propaganda, military counter-intelligence and covert diplomacy. [2]
Maps are weapons of war and the falsification of maps is a legitimate ruse de guerre. However, such Machiavellian arts were not confined to wartime, particularly in an age when there was very little peacetime. Fake maps were a weapon for all seasons, to be used against all rivals, political and commercial. [3]
In October 1941, before the United States entered World War II, President Franklin D. Roosevelt announced that he had "a secret map" of South America titled "Luftverkehrsnetz der Vereinigten Staaten Süd-Amerikas Hauptlinien". He said the map had been "made in Germany by Hitler's government" and that it showed that the Nazis had designs against the United States. It was a fake map, probably created by British intelligence agents, but Roosevelt may have thought it was genuine. [4]
In the Age of Discovery there was a premium on geographic information: ports of call for wood and fresh water, deep natural harbours, shorter passages and straits.
Censorship of maps was also used in former East Germany, especially for the areas near the border to West Germany in order to make attempts of defection more difficult.
The Dutch East India Company, or VOC, had a mission to censor cartographic knowledge of newly explored regions. It complained when ships owned by its rival, the Australische Compagnie, entered the Pacific by a new passage round Cape Horn, named the Le Maire Strait. The VOC persuaded the Dutch government to prohibit the publication of this latest geographical information. However, the injunction was lifted after twelve months and Willem Blaeu and other cartographers were permitted to publish revised maps. [5]
The German cartographer Henricus Martellus made his famous mappamundi (World Map), soon after the Portuguese navigator, Bartolomeu Dias, sailed round the southern tip of Africa. The map is based on a Portuguese prototype (which has not survived), but the coast of southern Africa is greatly extended and dislocated. Some scholars have suggested that this distortion is a result of misinformation circulated by King John II. His purpose was to pretend that the new eastern sea route to Asia and was far longer than it actually is, in order to discourage foreign interlopers from profiting from Portuguese discoveries. [6]
Christopher Columbus may have consulted Martellus' map (or a copy) before leaving Spain in 1492 to find the western route to Asia. [7]
In 1765, the Swiss geographer Samuel Engel, accused the Russian government of deliberately falsifying maps by extending Siberia 30° eastward. Its purpose, according to Engel, was to exaggerate the length and difficulty of the Northeast Passage along the arctic coast, in the hope of discouraging rival European merchants from attempting this route to the Pacific and China.
When Francis Drake sailed on his voyage round the world in 1577, he was given clear instructions that "none shall make any charts or descriptions of the said voyage." Furthermore, all charts made or captured from foreigners had to be delivered to the Lords of Her Majesty's Privy Council. Two hundred years later, the Admiralty's instructions to Captain Cook were almost identical.
The British Admiralty sent James Cook on his three Pacific voyages during the Second Hundred Years War when France and Britain were vying for commercial supremacy and control of shipping lanes around the world.
Cook has been accused of making "major mistakes in his charting", such as depicting "Stewart Island as a peninsula, and the failure to determine the insular character of Tasmania". [8]
However, Cook was the greatest navigator of his day and too experienced to make such errors. During his three Pacific voyages, Cook was on a mission to keep secret any strategic discoveries he made such as off-shore islands and deep, natural harbours. He would report such prizes to the Admiralty when he returned to London, but meanwhile he would omit them from his journal and charts. Cook's program of disinformation was first proposed in the book Lying for the Admiralty: Captain Cook's Endeavour Voyage (2018). [9]
In 1770, Cook found Sydney Harbour by walking overland from Botany Bay, along an Aboriginal track connecting the two inlets. He also identified Bass Strait which separates Tasmania from mainland Australia. However, off-shore islands can provide a base from which operations could be mounted by a hostile power so he concealed Tasmania's insularity. Similarly, Cook depicted New Zealand's Stewart Island as a peninsula, concealing Foveaux Strait.
Captain Cook's fake maps were not fake enough for the Admiralty. It wanted even greater concealment of politically sensitive discoveries when it commissioned Dr. Hawkesworth to write the official account of Cook's voyages. Thus the Admiralty's engraver deliberately altered and refined Cook's manuscript charts when preparing them for printing. Hawkesworth's "Journals" was a bestseller in Europe, and the Admiralty's fake maps misled Britain's rivals for decades. [10]
In the United Kingdom, during the Cold War period and shortly after, a number of military installations (including "prohibited places") did not appear on commercially issued Ordnance Survey mapping. This practice was effectively curtailed with the mass availability of satellite imagery. Another aspect of map censorship in the UK is that the internal layout of HM Prison facilities were not shown on public OS mapping.
A variant of censorship of maps is putting in false altitudes. This can be important for predicting flooding. In World War I many German soldiers were killed in Belgium after their camps were flooded, even though the maps used by German military indicated the camp sites were not prone to flooding.
Censorship of maps is today still often applied, although it is less effective in the age of satellite picture services. A "dead map" is a term often applied to sensitive government maps that show the location of top secret facilities and other highly sensitive installations within a country. Russia, the United States and Great Britain all have such maps.
Google Earth censors places that may be of special security concern. The following is a selection of such concerns:
Censorship of maps is also applied by Google Maps, where certain areas are greyed out or areas are purposely left outdated with old imagery. [17]
In Lebanon, all maps concerning the country are property of the Lebanese Army and are issued by the Directory of Geographic affairs of the Lebanese military. It is considered a felony to reproduce whole or portions of maps without the permission of the military, although maps can be issued to certain universities and urban design schools for use by students and can be issued to civilian upon presenting certain documents. A notice is written on the maps prohibiting reproduction, copying or sale of the map and that it should be returned to the Ministry of National Defense upon request. This policy is meant to prohibit terrorists, outlaws, and entities that are at war with Lebanon from obtaining those maps.[ citation needed ]
Lists of air traffic obstacles may not be published by many countries as many of them are strategically important (chimneys of power stations, radio masts, etc.)
Abel Janszoon Tasman was a Dutch seafarer and explorer, best known for his voyages of 1642 and 1644 in the service of the Dutch East India Company (VOC). He was responsible for the naming of New Zealand, as well as being the namesake for Tasmania.
Captain James Cook was a British explorer, cartographer and naval officer famous for his three voyages between 1768 and 1779 in the Pacific Ocean and to New Zealand and Australia in particular. He made detailed maps of Newfoundland prior to making three voyages to the Pacific, during which he achieved the first recorded European contact with the eastern coastline of Australia and the Hawaiian Islands and the first recorded circumnavigation of New Zealand.
The maritime European exploration of Australia consisted of several waves of European seafarers who sailed the edges of the Australian continent. Dutch navigators were the first Europeans known to have explored and mapped the Australian coastline. The first documented encounter was that of Dutch navigator Willem Janszoon, in 1606. Dutch seafarers also visited the west and north coasts of the continent, as did French explorers.
Bass Strait is a strait separating the island state of Tasmania from the Australian mainland. The strait provides the most direct waterway between the Great Australian Bight and the Tasman Sea, and is also the only maritime route into the economically prominent Port Phillip Bay.
HMS Endeavour was a British Royal Navy research vessel that Lieutenant James Cook commanded to Tahiti, New Zealand and Australia on his first voyage of discovery from 1768 to 1771.
The Torres Strait, also known as Zenadh Kes, is a strait between Australia and the Melanesian island of New Guinea. It is 150 km (93 mi) wide at its narrowest extent. To the south is Cape York Peninsula, the northernmost extremity of the Australian mainland. To the north is the Western Province of Papua New Guinea. It is named after the Spanish navigator Luís Vaz de Torres, who sailed through the strait in 1606.
Tupaia was a Tahitian Polynesian navigator and arioi, originally from the island of Ra'iatea in the Pacific Islands group known to Europeans as the Society Islands. His remarkable navigational skills and Pacific geographical knowledge were to be utilised by Lt. James Cook, R.N. when he took him aboard HMS Endeavour as guide on its voyage of exploration to Terra Australis Incognita. Tupaia travelled with Cook to New Zealand, acting as the expedition's navigator to the Polynesian Māori, and Australia. He died in December 1770 from a shipborne illness contracted when Endeavour was docked in Batavia for repairs ahead of its return journey to England.
Poverty Bay, officially named Tūranganui-a-Kiwa / Poverty Bay, is the largest of several small bays on the east coast of New Zealand's North Island to the north of Hawke Bay. It stretches for 10 kilometres (6 mi) from Young Nick's Head in the southwest to Tuaheni Point in the northeast. The city of Gisborne is located on the northern shore of the bay and the small settlement of Muriwai is located at the bay's southern end. The name is often used by extension to refer to the entire area surrounding the city of Gisborne.
New Holland is a historical European name for mainland Australia, which was discovered by Dutch navigator Willem Janszoon aboard Duyfken in 1606. The name was first applied to Australia in 1644 by the Dutch seafarer Abel Tasman, and for a time came to be applied in most European maps to the vaunted "Southern land" or Terra Australis even after its coastline was finally explored.
The theory of Portuguese discovery of Australia claims that early Portuguese navigators were the first Europeans to sight Australia between 1521 and 1524, well before the arrival of Dutch navigator Willem Janszoon in 1606 on board the Duyfken who is generally considered to be the first European discoverer. While lacking generally accepted evidence, this theory is based on the following:
Captain Charles Clerke was an officer in the Royal Navy who sailed on four voyages of exploration, three with Captain James Cook. When Cook was killed during his 3rd expedition to the Pacific, Clerke took command but died later in the voyage from tuberculosis.
Point Hicks, is a coastal headland in the East Gippsland region of Victoria, Australia, located within the Croajingolong National Park. The point is marked by the Point Hicks Lighthouse that faces the Tasman Sea.
Zachary Hicks was a Royal Navy officer, second-in-command on Lieutenant James Cook's first voyage to the Pacific and the first among Cook's crew to sight mainland Australia. A dependable officer who had risen swiftly through the ranks, Hicks conducted liaison and military duties for Cook, including command of shore parties in Rio de Janeiro and the kidnapping of a Tahitian chieftain in order to force indigenous assistance in the recovery of deserters. Hicks' quick thinking while in temporary command of HMS Endeavour also saved the lives of Cook, Joseph Banks and Daniel Solander when they were attacked by Māori in New Zealand in November 1769.
Isaac Smith (1752–1831) was a Rear Admiral in the Royal Navy and cousin of Elizabeth Cook wife of Captain James Cook, with whom he sailed on two voyages of exploration in the South Pacific. Smith was the first European to set foot in eastern Australia and the first to prepare survey maps of various Pacific islands and coastlines including Tierra del Fuego in South America.
The first voyage of James Cook was a combined Royal Navy and Royal Society expedition to the south Pacific Ocean aboard HMS Endeavour, from 1768 to 1771. It was the first of three Pacific voyages of which James Cook was the commander. The aims of this first expedition were to observe the 1769 transit of Venus across the Sun, and to seek evidence of the postulated Terra Australis Incognita or "undiscovered southern land".
James Cook's third and final voyage took the route from Plymouth via Tenerife and Cape Town to New Zealand and the Hawaiian Islands, and along the North American coast to the Bering Strait.
Eddystone Point lies on the north-east coast of Tasmania, Australia at 40.994 S/148.349 E.
An Account of the Voyages Undertaken by the Order of his Present Majesty for Making Discoveries in the Southern Hemisphere, and successively performed by Commodore Byron, Captain Wallis, Captain Carteret, and Captain Cook, in the Dolphin, the Swallow, and the Endeavour: drawn up from the journals which were kept by the several commanders, and from the papers of Joseph Banks, Esq. is a 1773 book by John Hawkesworth about several Royal Navy voyages to the Pacific: the 1764–1766 and 1766–1768 voyages of HMS Dolphin under John Byron and Samuel Wallis, the voyage of HMS Swallow under Philip Carteret (1766–1769), as well as the 1768–1771 first voyage of James Cook on HMS Endeavour. Hawkesworth received an advance of £6,000 for editing the three volumes.