Wyomia Tyus slipped on a pair of black shorts for the Olympic 100m final in Mexico City in 1968, her own quiet way of protesting racial injustice.
When she finished in world-record time (11 seconds flat), Tyus became the first athlete – male or female – to win back-to-back 100m gold medals.
The Mexico City Games are most remembered for the black-gloved fists raised by Tommie Smith and John Carlos, who were kicked out of those Olympics for their podium gesture. Tyus’ symbolic act (and later dedication of her 4x100m gold medal to Smith and Carlos) also resonates 52 years later as athletes make their voices heard.