The Clue
Long lines on a timeline (4 letter answer)
The Answer
ERAS
Tags
Notes
The answer ERAS is very common and appears about once every 35 puzzles.
Related Clues
Ages
Epochs
Periods
Times
Big times
Chunks of history
Diamond stats
Eventful stretches
Gaslight and others
Geological divisions
Geologists' studies
Historians' study
Historic periods
Historical periods
History chapters
Important dates
Long periods
Memorable periods
Memorable times
Notable periods
Notable times
Period pieces?
Periods for geologists
Periods of time
Pitching stats
Precambrian and others
Roman and Christian
Time frames
Time periods
Time spans
Timeline divisions
Times to remember
Unified periods
Varro and Vulgar
Big slices of history
Chapters in world history
Notable time periods
Pitching data: Abbr.
Theme-dominated times
Gay Nineties and Roaring Twenties
"Ut ___!" (Caesar's "As you were!")
Post-Civil War Reconstruction and others
Definition
ERA as a noun:
1. (era, epoch) = a period marked by distinctive character or reckoned from a fixed point or event
2. (era, geological era) = a major division of geological time; an era is usually divided into two or more periods
3. (earned run average, ERA) = (baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitched