Exactly 20 years ago, one lesbian couple and three gay couples tied the knot in Amsterdam's city hall - making history as the Netherlands became the first country to allow same-sex marriage, a step since followed by nearly 30 other nations.
During the two decades since the law took effect, thousands of gay and lesbian couples have wed in the Netherlands - representing 1.7% of all marriages, according to the national statistics bureau.
About 750 lesbian couples and 620 gay male couples have married on average annually over the last five years, and there are now some 20,000 married same-sex couples living in the country, official data shows.
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Same-sex marriage around the world, 20 years after Dutch first