Masterclass

The world has been fascinated and profoundly moved by this election most of all because of what America is — a nation founded on universal aspirations, and thus a mirror to humanity. For two centuries that mirror has seemed irreparably cracked by the legacy of slavery and segregation, a pernicious and enduring racism that remains a factor in the blighted lives of so many of the poor blacks among whom Mr Obama launched his political career. He is not the last role model they will ever need, but he is the most powerful proof his country has produced that it is ready to judge them by the content of their character, not the colour of their skin.