How did the Bern Treaty simplify international postal services?

The Bern Treaty, signed in 1874, revolutionized international mail by replacing a chaotic web of bilateral agreements with a unified framework. Before this treaty, international postal exchange was hindered by complex, inconsistent accounting requirements and varying standards for currency, weight, and measurement.12

The treaty simplified these services through several key principles:

• Single Postal Territory: It established that all signatory nations formed a single territory for the reciprocal exchange of correspondence, ensuring freedom of transit for mail.23
• Uniformity: It introduced standardized rules for postal rates, units of weight, and conditions of acceptance for letter-post items.23
• Simplified Accounting: To minimize complex international bookkeeping, the treaty established that each country retains the postage it collects on international mail, rather than sharing charges.3
• Arbitration: It provided a formal mechanism for settling disputes between postal administrations through arbitration.3

By creating the General Postal Union (later the Universal Postal Union), the treaty replaced "almost beyond belief" complexity with a streamlined, reliable system that remains the foundation of global postal cooperation today.13