THE SPARK

Aliko Dangote bet everything to build Africa's largest cement factory when every expert said it was impossible. The spark: a nation that makes its own things controls its own future.

In 1905, a 26-year-old patent clerk with no lab rewrote the laws of physics. The spark: your circumstances don't determine your genius — your obsession does.

On March 10, 1876, a human voice travelled through a wire for the first time. The spark: the things people say can't be done just haven't been done yet.

After 6,000 failed filaments, Edison's team found one that burned through the night. The spark: breakthroughs come not from the smartest person — but the last one still trying.

A schoolteacher united thousands of Nigerian market women against colonial rule — until a king abdicated. The spark: you don't need permission to demand what is right.

In Kinshasa, 1974, a fighter the world had written off used a secret no one saw coming to defeat the most feared champion alive. The spark: know how it ends before it begins.