It’s not just that Emmanuel Macron won and will become, at the age of 39, France’s youngest president. It’s not merely that he defeated, in Marine Le Pen, the forces of xenophobic nationalism exploited by President Donald Trump. It’s that he won with a bold stand for the much-maligned European Union, and so reaffirmed the European idea and Europe’s place in a world that needs its strength and values.

This, after Britain’s dismal decision last year to leave the European Union, and in the face of Trump’s woeful anti-European ignorance, was critical. Macron underlined his message by coming out to address his supporters in Paris accompanied by the European anthem, Beethoven’s “Ode to Joy,” rather than the Marseillaise — a powerful gesture of openness.

A Le Pen-led lurch into a Europe of nationalism and racism has been averted. President Vladimir Putin of Russian backed Le Pen for a reason: He wants to break down European unity and sever the European bond with the United States. Instead, the center held and, with it, civilization.

A federalizing Europe is the foundation of European postwar stability and prosperity. It offers the best chance for young Europeans to fulfill their promise. It is Europeans’ “common destiny,” as Macron put it in his acceptance speech, standing before the French and European Union flags. To think otherwise is to forget history. No wonder Chancellor Angela Merkel of Germany, through her spokesman, immediately proclaimed a victory “for a strong and united Europe.”