November 30·Every year

Día Nacional del Mate

Argentina's official celebration of yerba mate, the bitter herbal tea that functions as a national social ritual. The bombilla is shared; declining is mild rudeness.

Category: Drink
Observed in: ArgentinaofficialUruguayBrazilParaguay

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Notable · 2018

A magnitude-7.1 earthquake (aftermath pictured) hit Anchorage, Alaska, causing 117 injuries.

2022The AI chatbot ChatGPT is launched by OpenAI.
2021Barbados becomes a republic.
2021A 15-year-old gunman murders four students and injures seven people, including a teacher, in a mass shooting at Oxford High School in Oxford Township, Michigan.