1667

This number is a prime.

Vega was bleating out prime numbers in the 1667 megahertz hydroxyl line in Contact (Carl Sagan's only science fiction novel).

Smallest prime containing the fax number of the beast (667).

The year in which the English Parliament passed a law against fining or imprisoning jurors for returning the "wrong" verdict. [NYULR93] [NYU Law Review]

The first astronomer who first noticed Algol's fade-downs was Geminiano Montanari of Bologna, Italy, around 1667. [Fleenor]

The prime meridian ran through Paris in 1667.

Rock climber Alex Honnold free-climbed a 1667-foot skyscraper in Taiwan. [Breitbart]

1667 is the smaller in a set of twin primes for which the sum of digits of each is exactly twice the sum of digits of its prime index. [Gaydos]