We estimate your school years
Your graduation year minus 12 gives us a rough K–12 window.
A FIELD GUIDE TO OUTDATED KNOWLEDGE
Your textbooks
owe you an update.
Science moved on. History got fuller. Pluto had a whole situation. Tell us when you graduated and we’ll find the facts most likely left behind in your locker.
28researched corrections
5subject areas
0pop quizzes
Knowledge changes. That’s a feature, not a failure.
YOUR OUTDATED CURRICULUM
Class of 2006,
here’s what changed.
Your K–12 window
1994—2006
Updates after graduation
—
Best era match
—
28 likely classroom holdovers
Nothing in that notebook.
Try another search or clear the subject filter.
THE FINE PRINT
“Probably” is
doing real work here.
We don’t know what your exact teacher said. We do know when evidence shifted, when institutions updated their guidance, and which myths have stubbornly survived in classrooms.
We compare the timeline
Facts updated during or after that window rank higher for you.
We show our sources
Every card links to the institution, paper, or museum behind the correction.
This is a researched conversation starter, not a claim about every school or country. “Updated in” marks a major discovery, ruling, or public correction—not the day every textbook caught up.
THE GOOD NEWS?