Football rules the world because its reach is truly global. It's the universal language that can cross borders and appeal to all creeds, classes, communities and nations.

For millions of football addicts around the world, it's a culture and a philosophy, giving purpose to their lives and satisfying the basic human need for identity and belonging.

It's a genuine source for good, built on a noble and moral tradition, fostering loyalty, integrity, honesty and unity.

Football is a rallying point for people of all walks of life. It’s a symbol of hope and the last vestige of national pride.

Ultimately, football is a truly global phenomenon, with the ability to unite us all like nothing else. And that's why it rules the world.

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Martin Brookes tells us why football rules the world. He is an author, a one-time scientist, and a lifelong supporter of Manchester City.