Zheng He led seven ocean expeditions for the Ming court between 1405 and 1433.
What the source supports#
Columbia’s teaching reference identifies the commander, court sponsorship and period. This does not establish every popular claim about the dimensions of the ships or the commander’s private motives.
Evaluating the evidence#
Distinguish an institutional record, a participant’s account and a later reconstruction. If comparing fleet sizes, retain the source and what it actually counts. Do not invent private conversations or claim a modern national border was the voyage’s historical destination.
Scope#
These questions are editorial suggestions. This short introduction does not invent a historical scene or claim to settle a disputed interpretation.