Joseph Bertrand, a Common card

Joseph Louis François Bertrand was a French mathematician and historian of science whose work emphasized number theory, differential geometry, probability theory, economics and thermodynamics.
From the Wikipedia article

Rarity: Common
Domain: Science
ATK: 56
DEF: 21
Power: 77
Wikipedia reads a year: 6,400

Power 77 (ATK + DEF): stronger than 20 % of WikiCards cards.

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The facts on the card

The card carries these facts from its Wikipedia article.

He lends his name to various paradoxes in mathematics and economics, Bertrand's paradoxes, and to Bertrand's theorem on the stability of celestial orbits.

Why it is Common

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Joseph Bertrand article was read about 6,400 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 56 and blocks with 21: each hit it takes is cut by 8 %.

How to get Joseph Bertrand

Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.

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Cards close in power

The cards just above and just below Joseph Bertrand in the power ranking, all domains together.

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Credits

Text : Wikipedia, Joseph Bertrand (revision), CC BY-SA 4.0. Photo : Unknown author Unknown author, Public domain, Wikimedia Commons.