BETA
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prof_marcojosuer Place each monument on the map to learn its location and historical context.
today A November 2026 study of a Brazilian Aratasaurus fossil reveals the oldest-known dinosaur red blood cells and preserved heme proteins
biocentennial Afonso Henriques rebelled against his mother to rule Portugal.
BETA
dani_10 Operate the pulley system to discover how simple machines lift heavy loads.
Quiz
Pour s'orienter au milieu de la mécanique complexe d'une harpe à pédales et de ses 47 cordes, les harpistes s'appuient sur un code couleur universel. Quelles notes précises sont colorées pour servir de repères visuels sur l'instrument ?
Gossip
Godzilla Minus Zero just stomped the box office with a historic $31M opening! Which iconic movie monster is your favorite?
Fun Fact
Parthenocarpic figs: In this botanical secret agent mission, these figs bypass the wasp entirely, growing sweet fruit solo without needing any insect partner's help!
Glossary
marina abramović (noun)
A legendary pioneer of performance art who used her own body as a medium. Her teaching inspired Chiharu Shiota to make art physical and emotional.
A legendary pioneer of performance art who used her own body as a medium. Her teaching inspired Chiharu Shiota to make art physical and emotional.
Achievement
Project completed!
I am a Master of Down the rabbit hole of Lewis Carroll's original Alice
today Tokyo Night and Light
Thirteen thousand square meters shining in the night! (Shine so bright!) / Shinjuku's record-breaking wall of digital light! (Oh yeah!)
today Microscopic canals in Aratasaurus bones contain iron and nitrogen from ancient hemoglobin
maryluz Every November first, Tonacatepeque hosts this revived century-old celebration eighteen kilometers northeast of San Salvador using handmade clay masks.
choko Budapest shaped the early photography career of Kati Horna
BETA
coach Sort athlete recovery steps to master the mental playbook for starting over after a setback.
Quiz
¿Qué significa el nombre del fandom oficial del grupo de K-pop ASTRO, 'AROHA', en el idioma maorí de Nueva Zelanda?
Gossip
If you could gain the ultimate cell-boosting superpower from one super-veggie, which would you pick?
Fun Fact
La medusa immortale: La Turritopsis dohrnii può resettare il suo ciclo vitale quando è vecchia o ferita, tornando allo stato di polipo e ricominciando da capo.
Glossary
gato (substantivo)
Pequeno mamífero doméstico conhecido por sua agilidade, ronronares e temperamento independente. Eles são ótimos companheiros de estimação. Sabia que o miau deles serve apenas para falar com humanos?
Pequeno mamífero doméstico conhecido por sua agilidade, ronronares e temperamento independente. Eles são ótimos companheiros de estimação. Sabia que o miau deles serve apenas para falar com humanos?
Achievement
Project completed!
I am a Master of The raw brick and bold brushstrokes of Pinacoteca de São Paulo
today Late Bronze Age Battlefield Hoard
Long before the fight! (Long before the fight!) / Hiding a Bronze Age treasure in the soil out of sight!
marcus Students in Mingcaowuzhu dorm chose November 11 because the four ones represent lonely individual sticks, a concept called guanggun
sonia Electrical rhythms pulse constantly inside the human brain.
BETA
duolingo Build neural pathways to discover how daily habits create language fluency.
Quiz
Who is the volcanic sister and chief mythological rival of the Hawaiian sea goddess Namakaokahai?