The Amsterdam Declaration

Organized humanism did not begin as a single national movement that later went international. It began international, deliberately. In August 1952, delegates from five existing national societies, the American Humanist Association and the American Ethical Union from the United States, the British Ethical Union, the Vienna Ethical Society and the Dutch Humanist League, met in Amsterdam to found a federation that could speak for humanism collectively rather than leave each national body to represent itself alone.

They called it the International Humanist and Ethical Union, and at that founding congress adopted a statement of shared principles that came to be known as the Amsterdam Declaration, the document establishing what the federation actually holds humanism to mean in common, apart from whatever differences separated its founding member societies on other questions. The choice to draft a joint declaration at the very first congress, rather than deferring the question, signaled that the new federation intended to be a body with an actual shared position, not merely a coordinating office for otherwise independent national organizations.

That founding document has outlasted the organization's original name. The federation renamed itself Humanists International in 2019, but the declaration it adopted in Amsterdam in 1952 remains the reference point its later revisions return to and build on, still described in the organization's own materials as its founding statement.

The Amsterdam Declaration was not adopted once and left untouched. The same body's general assembly, using the same formal process that produced the original statement, revised and readopted it in 2002, fifty years after the founding congress, and again in 2022, marking the organization's seventieth anniversary.

Each revision updated the document's language for its own era without changing its basic commitments: humanism as an ethical life stance grounded in reason and evidence rather than revelation or supernatural authority, paired with a positive commitment to human rights and equal human dignity regardless of belief. Reading the 1952, 2002 and 2022 versions together shows an organization restating the same core position in successive vocabularies rather than changing what it actually holds, treating the declaration less as a museum piece and more as a living reference document its own members keep returning to and re-endorsing.

What the declaration is not is a claim to represent every humanist individually. It speaks specifically for the federation and its member organizations, adopted through their own general assembly rather than written about the wider humanist movement from outside, and the organization's own materials are candid that not every self-described humanist or humanist group worldwide belongs to it or endorses every clause. Within that stated limit, it remains organized humanism's clearest primary statement of what it declares itself to be.