The Number 1631: Properties and MeaningsPrime Factors of 1631=2x233.
The Year 1631 ADThere was a Venus Transit in 1631 AD and a partner transit in 1639 AD.
In the year 1631 Mount Vesuvius erupted in Pompeii.
In the year 1631 the Taj Mahal 's construction was started.
In the year 1631 King Gustav II Adolf of Sweden defeated the Catholic League and the Holy Roman Empire, ensuring religious liberty for the Protestant states of Germany.
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