Ronald Reagan stopped in San Diego ahead of Super Tuesday in 1980. Photo: Bettmann via Getty Images
We're taking you back to 1980, when there was early use of the election phrase "Super Tuesday."
The big picture: In that presidential election, Super Tuesday described the final Tuesday of the primary season in June, when key states like California cast votes, according to the National Constitution Center.
Now, it marks the start of primary elections in more than a dozen states, usually in March.
That switch to earlier primaries was driven by Southern states looking to gain influence in the 1984 election.
Zoom in: This June 1980 photo shows then-Republican presidential candidate Ronald Reagan listening intently to San Diego tuna fishermen on a brief campaign swing on the eve of California's primary election.
