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Come Fan with UsTuesday, June 30, 2026

Baseball’s Six Eras

I don’t know how much Bill James Online costs (they comp me). But Bill’s methodical division of baseball into six eras must be worth whatever they charge. After the jump, those eras ...

The Pioneer Era: 1871-1892
The Spitball Era: 1893-1919
The Landis Era: 1920-1946
The Baby Boomers Era: 1947-1968
The Artificial Turf Era: 1969-1992
The Camden Yards Era: 1993-

We may quibble about the names of the eras. But Bill goes to great lengths before arriving at the selected seasons. And he concludes by predicting that a new era will begin at some point in the next five seasons.

But what will we call it?

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