Get it right, and your streak builds. Get it wrong 3 times, and the game ends. Tap any card for a link to its Wikipedia entry to learn more. There are over 10,000 different cards to sort, ranging widely in time and topic. From dinosaurs, to today's top TikTokers. From the first woman in space, to the founding of the Qin dynasty. Card facts are sourced from Wikipedia and Wikidata. 25% of all app proceeds will be donated to Wikipedia to support its mission of empowering & engaging people in collecting & developing educational content under a free license or in the public domain, and disseminating it effectively & globally.
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