A legend is a story about a great person or thing. Legends are passed from one generation to another, and in the retelling of the legend, details or events become magnified or exaggerated over time. A legend can be an old story, or it can be about recent activities.
The legend of King Arthur of England is well known among students of British history.
King Arthur’s defense of England against Saxon invaders in the sixth century is legendary. (The word "legendary" is an adjective.)
Abraham Lincoln remains a legend in the United States for his honesty and vision as a leader.
Al Capone became a legend among people living in Chicago in the 20s and 30s, even though he was a ruthless gangster.
Many sports fans consider the basketball player Michael Jordan a legend.
He became a legend in his own time.
Successful gladiators became legends during Roman times.