How Passports Evolved From Ancient Travel Permits To Modern Identity Documents

Last Updated:June 25, 2026, 21:09 IST

One of the earliest known references to a passport-like document appears in the Book of Nehemiah in the Hebrew Bible, dating back to around 450 BCE.

The recent debate over whether a passport constitutes proof of citizenship in India has renewed interest in one of the world’s most important travel documents. While passports today are widely regarded as the primary proof of identity and nationality for international travel, their origins can be traced back more than 2,500 years to a time when kings and rulers issued letters guaranteeing safe passage to travellers crossing their territories.

The modern passport did not emerge overnight. Instead, it evolved gradually from royal permissions and handwritten travel letters into the highly secure, biometric documents carried by billions of people across the globe today.

The Earliest Passport-Like Documents

One of the earliest known references to a passport-like document appears in the Book of Nehemiah in the Hebrew Bible, dating back to around 450 BCE.

According to historical accounts, Nehemiah, an official in the court of Persian King Artaxerxes I, requested letters from the king addressed to governors beyond the Euphrates River. These letters instructed local authorities to grant him safe passage as he travelled to Judea.

Although not passports in the modern sense, the documents served a similar purpose—identifying the traveller and requesting protection and assistance during the journey.

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How The Word ‘Passport’ Was Born

While the concept of safe-conduct documents existed in ancient civilisations, historians generally trace the origins of the modern passport to medieval Europe between the 13th and 15th centuries.

The term “passport" is believed to have originated from the French words passer (to pass) and port, referring to a port, harbour, gate or passage. In its earliest form, a passport was essentially a permission slip issued by a ruler, allowing a traveller to pass through a city gate, seaport or territory under the ruler’s control.

One of the earliest documented examples came in 1414 when England’s King Henry V began issuing “Safe Conduct" documents to travellers journeying abroad. Unlike modern passports, these documents were not restricted to citizens. Anyone could obtain one upon payment and use it as proof of identity and authorisation to travel through foreign territories.

For centuries, passports remained little more than letters bearing the seal or signature of a monarch. Their primary purpose was to guarantee safe passage and indicate that the traveller enjoyed the protection of a ruler.

The word “passport" began appearing more regularly in official English records during the Tudor period. In 1540, responsibility for issuing travel documents was transferred to the Privy Council of England, and officials increasingly adopted the term instead of older expressions such as “letters of safe conduct".

Interestingly, the first recorded appearance of the word in an English statute came in 1548, where it referred not to international travel but to a military leave document allowing soldiers to travel away from their place of service.

When Europe Travelled Without Passports

The passport’s importance declined significantly during the 19th century as railways and modern transportation transformed travel across Europe.

Between 1850 and the outbreak of World War I in 1914, many European countries abolished passport requirements altogether. Travellers could move across much of the continent with little more than a train ticket, leading historians to describe the period as a golden age of unrestricted movement.

World War I And Birth of the Modern Passport

The outbreak of World War I in 1914 changed the landscape of international travel forever.

As governments sought to monitor spies, migrants and military-age citizens, passport requirements were reintroduced across Europe and beyond. What had once been an optional document became an essential tool of national security.

The foundations of the modern passport system were laid in 1920 when the League of Nations convened an international conference in Paris to standardise travel documents.

The conference established common rules governing passport size, format and content, creating the blueprint for the booklet-style passports still used today. Countries agreed on standard features such as dedicated spaces for personal details, photographs and official endorsements, making passports easier to recognise and verify across borders.

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From Physical Descriptions To Passport Photos

Early passports looked very different from the documents people carry today.

For centuries, they were often single sheets of paper folded and carried by travellers. Before photography became widely available, officials relied on detailed written descriptions to identify passport holders, recording physical features such as facial structure, complexion and eye colour.

When photographs were introduced in the early 20th century, the rules were surprisingly relaxed. Applicants sometimes submitted informal family portraits or pictures taken in gardens and other casual settings.

It was only after international standardisation efforts that passport photographs became uniform and subject to strict requirements.

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The Rise Of E-Passports

The most significant transformation in passport security came in the 21st century.

Following the September 11, 2001 terrorist attacks in the United States, governments around the world introduced stricter identity verification measures and enhanced border controls.

This led to the emergence of biometric passports, commonly known as e-passports. These documents contain embedded microchips that store digital information, including photographs, fingerprints and electronic signatures, helping authorities verify identities more accurately and reduce the risk of forgery.

The Passport In Modern Era

Today, passports are among the most sophisticated and secure identity documents in the world.

Their design and technical specifications are governed by the International Civil Aviation Organization (ICAO), a specialised agency of the United Nations that establishes global standards for travel documents. These standards ensure that passports issued by different countries can be scanned and verified seamlessly at airports and border crossings worldwide.

From handwritten letters issued by ancient Persian kings to chip-enabled biometric booklets, the passport has undergone a remarkable transformation over the past 2,500 years. While its appearance and technology have evolved dramatically, its fundamental purpose remains unchanged: to identify travellers and facilitate safe movement across borders.

About the Author

Saurabh VermaSenior Sub-editor

Saurabh Verma covers general, national and international day-to-day news for News18.com as a Chief Sub-editor. He keenly observes politics. You can follow him on Twitter --twitter.com/saurabhkverma19

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