About
750 inventions · 6 eras
Put history in order
HistoryStack is a timeline game about inventions, from stone tools to modern technology. Place each card before, after, or between the inventions already on your timeline. You don't need to know exact dates, use context and logic to figure out what came first.
Choose how you play
Campaign
Explore six eras, chapter by chapter. Clear each chapter and improve your score.
Daily Challenge
Ten cards, the same for everyone, one attempt each day.
Free Play
Choose an era, round length and difficulty, then build your own timeline.
Blitz
Start with 60 sec. Correct answers add 2 sec, mistakes cost 5. Keep the timeline alive.
There’s a story behind every card
Open any card to discover where an idea began, who helped bring it to life, and a surprising fact.
Collect inventions in your Museum, revisit their stories, and unlock trophies along the way. Many inventions evolved over generations. Their dates mark the earliest known beginnings, not the whole story.