Lost in translation: 12 historic city names that vanished from maps

Many well-known cities have not always been called by their modern names. Medieval maps and documents often reflect older forms shaped by language, imperialism, and administrative change. This article presents 12 cities whose historical names differ from the ones used today, reflecting how urban identity can evolve over time.

European merchants from the 1500s onward commonly referred to this major southern Chinese port as Canton, a name that developed from the Portuguese pronunciation of Guangdong, the surrounding province. In contrast, medieval Chinese records and administrative documents consistently used Guangzhou to identify the city itself.

As foreign trade increased in later centuries, Canton remained the dominant term in Western maps and reports. During the 20th century, the Chinese government standardized Guangzhou as the official form, and international publications gradually adopted the modern name in line with updated geographic and linguistic guidelines.

On medieval maps, this Baltic port appears as Reval, a name associated with the surrounding region of Revala and used widely in German and Swedish documents. The local Estonian name Tallinn, often interpreted as meaning "Danish town," existed alongside Reval for many centuries but did not appear frequently in international references. After Estonia gained independence in 1918, the new government adopted Tallinn as the official name for state administration, mapping, and foreign correspondence, gradually phasing out the historical form Reval from everyday use.

In the 17th century, European traders adopted the name Bombay, derived from the earlier Portuguese form Bombaim, which was coined after Portugal arrived in the region. Medieval local settlements, however, used names connected to the goddess Mumbā Devī, and these forms gradually developed into Mumbai in regional languages.

The name Bombay remained common in English during the colonial period and well into the 20th century. In 1995, the Indian government formally adopted Mumbai as part of a broader effort to restore historical and regional place names and align official usage with long-established local terminology.

We now know it as Bratislava, but in medieval German and Central European sources, the capital of Slovakia appeared as Pressburg, a name widely used in administrative records and regional maps. Hungarian documents used Pozsony, while Slovak-speaking communities used earlier forms that later developed into Bratislava.

After the creation of Czechoslovakia in 1918, the new government selected Bratislava as the official name. This decision aligned the city’s identity with the Slovak language and standardized its use in state administration, cartography, and international communication.

English-language maps from the medieval and early modern periods often used the name Leghorn to refer to this port city on the west coast of Tuscany. This form, an anglicized version of the Italian Livorno, appeared in trade documents, port registries, and maritime charts produced in Britain and other Western European countries.

Within Italy, however, the name Livorno remained standard in official records and everyday use. As English cartographic practices modernized in the late 19th and early 20th centuries, Leghorn was progressively replaced in atlases, government publications, and international references, leaving Livorno as the fully standardized name.

In 1930, the Republic of Turkey officially adopted the name Istanbul as part of nationwide language reforms that aimed to standardize geographic names. Yet, during the Middle Ages, European and Byzantine documents consistently used Constantinople, a name introduced in 330 CE when Emperor Constantine refounded the city as the capital of the Eastern Roman Empire.

The form Istanbul existed in local speech for many centuries, especially in Ottoman Turkish administrative and everyday use, but it remained secondary outside the region. It did not replace Constantinople in international publications, maps, and diplomatic records until the early 20th century, when the Turkish government applied the modern spelling in official communications.

Medieval Latin sources refer to this antique city spanning the Rhine River in western Germany as Colonia Agrippina, a designation used in administrative records and church documents. Over time, this Latin name shifted into Cologne in French and later in English.

Within the German-speaking world, however, Köln is the official name employed in government and municipal contexts. Cologne continues to be used internationally in English-language publications, reflecting the city’s long linguistic connection to its earlier Latin and French forms.

During Venetian rule, from the 13th to the 17th century, both the city and, at times, the entire island of Crete were commonly referred to as Candia in European maps, trade documents, and diplomatic correspondence. Local Greek populations, however, continued to use Heraklion (or Iraklio) in everyday speech and regional records. After Crete unified with the Kingdom of Greece in 1913, the Greek government adopted Heraklion as the official name. This change gradually replaced Candia in administrative documents, cartography, and international references.

European travelers adopted the name Peking based on older pronunciations of the city’s name that circulated in foreign accounts during the Yuan dynasty. These forms entered Western languages through early maps, missionary writings, and trade records.

Within China, however, the Ming dynasty formally established Beijing, meaning "Northern Capital", as the administrative name in 1403. The term remained through later dynasties and into the modern period. In the 20th century, the Chinese government standardized Beijing for international use, and over time, it replaced Peking in official English-language publications, atlases, and diplomatic documents.

To refer to the capital of Georgia, European and Russian documents from the medieval period through the 19th century commonly used Tiflis, a form that entered widespread use through administrative records, maps, and travel writing. Yet, the Georgian name Tbilisi existed throughout this time as the local designation.

In 1936, during a series of Soviet administrative and linguistic reforms, authorities formally adopted Tbilisi as the standardized name. After this change, Tiflis was gradually removed from official documents.

Founded as Edo in the medieval period, this ancient city grew from a fortified settlement into a major urban center under the Tokugawa shogunate beginning in the early 1600s. During this time, Edo became the seat of the shogun and developed one of the largest populations in the world.

When the Meiji Restoration transferred imperial authority to Edo in 1868, the new government renamed the city Tokyo, meaning "Eastern Capital." This decision recognized its new status as the national capital and marked the beginning of its role as the administrative and political center of modern Japan.

After a major fire in 1624, the capital of Norway, originally called Oslo, was rebuilt under King Christian IV and renamed Christiania as part of the reconstruction effort. The earlier name continued to appear in local usage and historical references during the following centuries. In 1925, however, the Norwegian government formally reinstated Oslo as the official name, restoring the designation used before the medieval period and aligning administrative records with long-standing local tradition.

Heartbreaking truths ahead

Does S.O.S really mean Save Our Souls? Enter the fun world of backronyms!

Most abbreviations really do stand for something. Others only seem to. That's where backronyms come in: phrases invented after a word or name already exists, making it look like the letters always had a hidden meaning. You have probably heard of many of the following examples. Some are official, some are humorous, and some have become so popular that many people mistake them for genuine origins.

Nearly everyone has heard that SOS means "Save Our Ship" or "Save Our Souls." The phrases sound so fitting that they've appeared in books, films, and everyday conversation for more than a century.

The truth is simpler. SOS was never an abbreviation. It became the international Morse-code distress signal in 1906 because its pattern—three dots, three dashes, three dots—was unmistakable. The famous phrases were invented afterward as memory aids, making them classic backronyms. The signal became world-famous during the Titanic disaster in 1912.

One of the best-known language myths claims wealthy passengers sailing between Britain and India booked cabins marked P.O.S.H., meaning "Port Out, Starboard Home," to stay on the cooler side of the ship.

It's an entertaining story, indeed, but historians have never found evidence that shipping companies used those markings. The Oxford English Dictionary rejects the explanation, and linguists consider it a false acronym. The real origin of posh remains uncertain, proving that a good story can sometimes outlive the facts.

This explanation feels almost too perfect, right? Since news comes from every direction, many people assume the word must have been built from the initials of the four compass points.

In reality, news existed centuries before acronyms became common. The word developed from the plural of new, referring to recent events or fresh information. The compass-direction version was invented much later, making it another clever backronym rather than the word's true origin.

Congress was still creating memorable backronyms decades later. The CHIPS and Science Act, signed into law in 2022, was named to emphasize its focus on rebuilding semiconductor manufacturing in the United States.

The word CHIPS was deliberately expanded to Creating Helpful Incentives to Produce Semiconductors, matching the legislation's primary goal. The act provides tens of billions of dollars in incentives for chip production and scientific research, making it one of the largest industrial policy initiatives in recent U.S. history.

Computer enthusiasts have long joked that Yahoo! stands for "Yet Another Hierarchical Officious Oracle," a name that certainly sounds technical enough for an early internet company. Except it's not real.

The real story is literary instead of technological. Founded in 1994 by Jerry Yang and David Filo, Yahoo! borrowed its name from the unruly Yahoos in Jonathan Swift's Gulliver's Travels. The elaborate expansion came later as a humorous backronym embraced by programmers and web users alike.

The AMBER Alert system honors Amber Hagerman, the 9-year-old girl abducted and murdered in Arlington, Texas, in 1996. Her case inspired a faster way to notify the public when children go missing.

The program's name came first, as a tribute to Amber. Officials later created the official expansion America's Missing: Broadcast Emergency Response, giving the system an easy-to-remember backronym. Since then, AMBER Alerts have helped law enforcement safely recover hundreds of abducted children across North America.

"What I Know Is" sounds like the perfect explanation for a website anyone can edit. It's short, memorable, and neatly matches the idea of people sharing knowledge online.

But Wiki has a completely different origin. Programmer Ward Cunningham borrowed the Hawaiian phrase wiki wiki, meaning "quick," when he created the first wiki in 1995. The idea reportedly came from Honolulu Airport's Wiki Wiki Shuttle. The English phrase appeared later as a playful backronym after the technology became popular.

The DREAM Act was introduced in Congress in 2001. It was designed to provide a pathway to legal status for certain undocumented immigrants brought to the United States as children.

Its title was intentionally crafted to produce the hopeful word DREAM, making it another official legislative backronym. Although the original bill has never become law, it gave rise to the widely used term "Dreamers," which remains central to discussions about U.S. immigration policy.

Few brands have inspired more fake acronym stories than Adidas. Variations like "All Day I Dream About Sport" have circulated for years, while others replace "Sport" with "Soccer" or even "Success."

None of them is true. The company, founded in Germany in 1949, was named after its founder, Adolf "Adi" Dassler. The brand name simply combines his nickname with the beginning of his surname: Adi + Das(sler). Every catchy expansion came afterward, making them textbook examples of backronyms.

Unlike most entries on this list, this is an official backronym that serves a practical purpose. Medical students around the world still learn it during their training.

The Apgar Score was introduced in 1952 by anesthesiologist Dr. Virginia Apgar to quickly evaluate newborn babies after birth. The test was originally named after her surname. Later, educators created the mnemonic Appearance, Pulse, Grimace, Activity, Respiration, turning the doctor's name into a memorable teaching tool.

Some backronyms are created not by accident, but by design. The USA PATRIOT Act became one of the best-known examples after the September 11, 2001, terrorist attacks.

Signed into law by President George W. Bush on October 26, 2001, the legislation's lengthy official title was deliberately written so its initials would spell PATRIOT. The memorable name helped define the law's public image, even as its expanded surveillance powers sparked years of debate over security and civil liberties.

Not every backronym begins in a government office. One of the newest started with a joke. Aurora enthusiasts spotted a mysterious purple ribbon in the night sky and jokingly nicknamed it STEVE, borrowing the gag from the animated film Over the Hedge.

As scientists began studying the phenomenon, they later created the technical expansion Strong Thermal Emission Velocity Enhancement to match the already popular nickname. Today, STEVE is recognized as a distinct atmospheric phenomenon related to, but different from, traditional auroras—proof that even serious science sometimes enjoys a little humor.