The Evolution of the Modern Passport: History from 1914 to Today
The history of passports can be traced back to ancient times, but the modern concept of passports as we know them today began to emerge in the early 20th century[1][3]. Here is a summary of the passport history from modern times until today:
Early Developments
In the 15th century, documents known as “sauf conduit” or safe conduct passes were used to grant passage to individuals for specific purposes, such as negotiations[1]. In 1414, the British Parliament mentioned the term “passport” in an Act, but the origins of the word are still debated[2].
Foreigners and Merchants
Passports were initially granted to foreigners and were mostly used for trade and commerce purposes[2]. In France, King Louis XI began issuing certificates authorizing the free circulation of merchandise in 1420[2]. Over time, governments started to view passports as a means of security and identification, especially with increased mobility leading up to the Industrial Revolution[2].
Standardization and Control
In the 20th century, passports began to be used in a more standardized manner. The first modern British passport was introduced in the early 20th century[3]. The Privy Council and later the office of the secretary of state took control of issuing passports in the UK[3]. Passports were not generally required for international travel until the First World War[3].
The Birth of Global Mobility: The 1920 Passport Conference
Before 1914, a traveler could cross most European borders with little more than a train ticket. The First World War shattered this era of open movement, replacing it with a chaotic web of emergency “aliens restrictions” and surveillance. By 1920, the world was a bureaucratic nightmare of inconsistent permits and high fees.
Recognizing that economic recovery required the fluid movement of people, the League of Nations convened the Paris Conference on Passports, Customs Formalities and Through Tickets in October 1920. This was not merely a meeting about paperwork; it was the first concerted effort to standardize international identity.
Standardizing the “Nansen” Spirit
The conference faced a dual challenge: national security concerns and the humanitarian crisis of millions of stateless refugees. Led by the League’s Provisional Committee for Communications and Transit, delegates from 22 nations sought to bring order to the “temporary” wartime measures that had become entrenched.
The 1920 conference established the “International Type” passport:
-
Uniform Dimensions: A booklet format (32 pages) rather than a single sheet of paper.
-
Bilingual Content: Information was to be written in the national language plus French
(the diplomatic lingua franca of the era). -
Security Features: Specific guidelines for photographs and cardboard covers to prevent tampering.
Legacy and Impact
While the conference could not force sovereign states to abolish visas—a goal that proved too ambitious for the time—it succeeded in reducing their cost and complexity. Most importantly, it laid the groundwork for the Nansen Passport, the first legal instrument used for the protection of stateless persons.
By 1926, over 40 countries had adopted the League’s recommendations. The 1920 conference essentially invented the modern passport as we recognize it today, transitioning the document from a rare “letter of introduction” for elites to a standardized tool for global citizenship.
Evolution of Technology
Passports have evolved technologically over time. Today’s passports often include microchips, holograms, biometric photos, and barcodes for enhanced security and identification[1]. These technological advancements have made passports more secure and difficult to counterfeit.

Passport Records
Passport records have been maintained by various government agencies. In the United States, passport records have been maintained since March 1925[4]. However, passport records do not include evidence of travel such as entrance or exit stamps, visas, or residence permits[4].

Passport Statistics
Statistical data is available on the number of passports issued by year and the number of valid passports in circulation[5]. For example, in the United States, the number of passports issued has increased over the years, with over 14 million passports issued in 2009[5].

Passport Fees
Fees for a passport can greatly vary from country to country and can be anything between $30 and $300.[7]
It’s important to note that passport requirements and regulations vary between countries, and the specific details of passport history may differ depending on the region.
Citations:
[1] https://www.nationalgeographic.com/travel/article/a-history-of-the-passport
[2] https://www.imidaily.com/editors-picks/the-passport-throughout-history-the-evolution-of-a-document/
[3] https://www.theguardian.com/travel/2006/nov/17/travelnews
[4] https://travel.state.gov/content/travel/en/passports/have-passport/passport-records.html
[5] https://travel.state.gov/content/travel/en/about-us/reports-and-statistics.html
[6] https://www.state.gov/update-on-passport-processing-times/
[7] https://www.passport-collector.com/passport-fees-by-country-2026-most-expensive-cheapest-passports/
Tom Topol | Passport Historian & Author
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