상황
A historical timeline of major biological and geological events in Earth's history, suitable for educational contexts.
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01
Used negative numbers to represent millions of years ago for correct chronological ordering.
02
Highlighted key events as milestones with different colors.
03
Included both evolutionary milestones and mass extinctions.
Use when illustrating the deep time scale of life's evolution, such as in biology textbooks, museum exhibits, or science communication.